It is narrated from Sayyiduna Buraydah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "The covenant (that distinguishes) between us and them (the disbelievers) is the prayer; so whoever abandons it has disbelieved." This hadith has a sahih chain, and we do not know of any hidden defect ('illah) in it from any angle; both of them used the narration of Abdullah bin Buraydah from his father as evidence, and Imam Muslim also used al-Husayn bin Waqid as evidence, but they did not record this hadith with these words. This hadith also has a sahih corroborating narration (shahid) on the condition of both of them.

It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that the Companions of the Messenger of Allah (peace and blessings be upon him) did not regard the abandoning of any deed as disbelief except the prayer.

It is narrated from Sayyiduna Ali bin Abi Talib (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Whoever commits a sin that carries a hadd (prescribed punishment), and Allah Almighty hastens its penalty for him in this world (in the form of the punishment), then Allah is far too just to repeat the punishment upon His servant in the Hereafter. And whoever commits a sin that carries a hadd, but Allah Almighty conceals it for him (in this world) and pardons him, then Allah is far too generous to go back on something He has already pardoned." This hadith has a sahih chain, but they (Imam Bukhari and Muslim) did not record it, although both of them used the narration of Abu Juhayfah from Ali bin Abi Talib as evidence, and they also agreed on the narration of Abu Ishaq; moreover, both of them used al-Hajjaj bin Muhammad as evidence, while Imam Muslim also used Yunus bin Abi Ishaq as evidence.

Iyas bin Salamah narrates from his father (Sayyiduna Salamah bin al-Akwa' (may Allah be pleased with him)) that he was with the Messenger of Allah (peace and blessings be upon him) when a man came to him (peace and blessings be upon him), leading a pregnant mare of his, with a filly of hers following behind her. The man asked: Who are you? He (peace and blessings be upon him) said: "I am a Prophet." He asked: What is a Prophet? He (peace and blessings be upon him) said: "The Messenger of Allah." He asked: When will the Hour be established? The Messenger of Allah (peace and blessings be upon him) said: "(It is of) the unseen, and none knows the unseen except Allah." He said: Show me your sword. So the Prophet (peace and blessings be upon him) gave him his sword; the man brandished it (in the air) and then returned it to him (peace and blessings be upon him). The Messenger of Allah (peace and blessings be upon him) said: "Know that you would not have been able to do what you intended (that is, to kill)." The narrator says: The man had already said beforehand: I will go to him and ask him about these matters. This hadith is sahih, but they did not narrate it, although both of them are agreed on using Iyas bin Salamah from his father as evidence, and Imam Muslim, using this very chain as evidence, narrated several hadiths from Ahmad bin Yusuf.

It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Whoever goes to a fortune-teller or a soothsayer and believes what he says has disbelieved in the religion (Shari'ah) that was revealed to Muhammad (peace and blessings be upon him)." This hadith is sahih on the condition of both of them through the narration of Ibn Sirin, but they did not record it. However, Imam Bukhari narrated, through Ishaq from Rawh from Awf from Khilas and Muhammad from Abu Hurayrah, the story of Sayyiduna Musa (peace be upon him) in which his being free of a physical defect is mentioned.

It is narrated from Sayyiduna Mu'adh bin Jabal (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "There is no one on the face of the earth who dies without associating anything with Allah, bearing witness that I am the Messenger of Allah, while his heart is fully certain of it, except that Allah Almighty will surely forgive him." (The narrator Hissan bin Kahil says:) I asked: Did you hear this yourself from Mu'adh? The people present rebuked me (for this question), but he said: Leave him, he has not said anything bad. Yes, I heard it from Mu'adh bin Jabal, and Mu'adh maintained that he heard it from the Messenger of Allah (peace and blessings be upon him). This is a sahih hadith which trustworthy narrators have narrated; however, both of them did not report it with these words. In my view (and Allah knows best), they left it because of Hissan bin Kahil (or Ibn Kahin), since only Humayd bin Hilal al-Adawi is known for narrating from him; however, Ibn Abi Hatim mentioned that Qurrah bin Khalid also narrated from him. Both of them (the two Shaykhs) took narrations from a number of trustworthy narrators who had only one student, so by their own principles recording a hadith like this one becomes binding on them. And Allah knows best.

It is narrated from Sayyiduna Abu Umamah al-Bahili (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Modesty and reticence (caution in speech) are two branches of faith, and obscenity and (needless) eloquence are two branches of hypocrisy." This hadith is sahih on the condition of the two Shaykhs (Bukhari and Muslim), but they did not record it, although they used all of its narrators as evidence.

It is narrated from Sayyiduna Abu Umamah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Simplicity and plainness of dress (out of detachment from the world) are part of faith; simplicity is part of faith." Imam Muslim used Salih bin Abi Salih al-Samman as evidence.

It is narrated from Sayyiduna Abu Umamah al-Bahili (may Allah be pleased with him); he said: I heard the Messenger of Allah (peace and blessings be upon him) say on the day of the Farewell Hajj: "Worship your Lord, pray your five (prayers), fast your month (of Ramadan), pay the zakah of your wealth, and obey those in authority over you; you will enter the Paradise of your Lord." This hadith is sahih on the condition of Imam Muslim, and we know of no hidden defect ('illah) in it, but both of them did not record it, although Imam Muslim used the hadiths of Sulaym bin Amir as evidence, and all the other narrators are agreed upon.

It is narrated from Sayyiduna Safwan bin Assal al-Muradi (may Allah be pleased with him) that a Jew said to his companion: Take us to this Prophet so that we may ask him about this verse: "And We certainly gave Musa (peace be upon him) nine clear signs." [Surah al-Isra': 101] His companion said: Do not call him 'Prophet', for if he heard you, he would have four eyes (that is, he would be delighted). The narrator says: So the two of them asked him (peace and blessings be upon him), and he (peace and blessings be upon him) said: "Do not associate anything with Allah, do not steal, do not commit adultery, do not kill the soul that Allah has made sacred except by right, do not practise magic, do not consume usury (riba), do not take an innocent person to a ruler (to have him punished) so that he kills him, do not slander a chaste woman, and you, O Jews, are specifically obliged not to transgress on the Sabbath (by fishing)." On hearing these words of his (peace and blessings be upon him), the two of them kissed his blessed hand and feet and said: We bear witness that you are indeed a Prophet. He (peace and blessings be upon him) asked: "Then what has prevented you from accepting Islam?" They said: Dawud (peace be upon him) prayed that there would always be a Prophet among his descendants, and we fear that if we accept Islam the Jews will kill us. This is a sahih hadith in which we know of no hidden defect ('illah) from any angle, but both of them did not record it, nor did they mention even a single hadith of Safwan bin Assal. I heard Abu Abdullah Muhammad bin Ya'qub al-Hafiz, when Muhammad bin Ubayd asked him: Why did the two of them leave the hadith of Safwan bin Assal altogether? He replied: Because of the corruption of the route (chain) leading to him. Imam al-Hakim says: By this Abu Abdullah meant the chain of Asim from Zirr, because both of them left Asim bin Bahdalah. As for Abdullah bin Salimah al-Muradi (whose kunyah is Abu al-Aliyah), he is one of the senior companions of Sayyiduna Ali and Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with them both); he took narrations from Sa'd bin Abi Waqqas, Jabir bin Abdullah and others, and Abu al-Zubayr al-Makki and a group of the Successors narrated from him.