It is narrated from Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "The believer is neither one who taunts, nor one who curses, nor one who is obscene, nor one who speaks vulgarly." This hadith also has a second corroborating narration (shahid) from Ibrahim al-Nakha'i, which must be mentioned even though its chain is not on the condition of the two Shaykhs.

It is narrated from Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "The believer is not one who taunts, nor one who is obscene, nor one who is vulgar." Although Muhammad bin Abd al-Rahman bin Abi Layla is attributed with a poor memory, he is one of the jurists and judges of Islam, and among the eminent descendants of the Companions and Successors of the Ansar. May Allah Almighty have mercy on them.

It is narrated from Sayyiduna Abu Musa al-Ash'ari (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Whoever commits an evil deed and dislikes it while doing it, and does a good deed and is pleased by it, is a believer." Both of them (Imam Bukhari and Muslim) used all the narrators of this hadith as evidence, and it is sahih on their condition, but they did not record it. They only narrated these words in the sermon of Sayyiduna Umar bin al-Khattab (may Allah be pleased with him): "Whoever is pleased by his good deed and saddened by his evil deed is a believer." There is also a corroborating narration (shahid) for it with these words.

It is narrated from Sayyiduna Abu Umamah (may Allah be pleased with him) that a man asked the Messenger of Allah (peace and blessings be upon him): O Messenger of Allah, what is faith? He (peace and blessings be upon him) said: "When your good deed pleases you and your evil deed saddens you, then you are a believer." He asked: O Messenger of Allah, what is sin? He (peace and blessings be upon him) said: "When something troubles (causes doubt in) your chest, leave it." Ali bin al-Mubarak and Ma'mar bin Rashid likewise narrated it from Yahya bin Abi Kathir. As for the hadith of Ali bin al-Mubarak:

Sayyiduna Abu Umamah (may Allah be pleased with him) says that a man asked the Messenger of Allah (peace and blessings be upon him): What is faith? He (peace and blessings be upon him) said: "When your good deed pleases you and your evil deed saddens you, then you are certainly a believer."

It is narrated from Sayyiduna Abu Umamah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) was asked: What is faith? He (peace and blessings be upon him) said: "Whoever is pleased by his good deed and saddened by his evil deed is a believer." All of these hadiths are sahih and connected (muttasil) on the condition of the two Shaykhs.

It is narrated from Sayyiduna Awf bin Malik al-Ashja'i (may Allah be pleased with him); he said: We halted at a stopping place with the Messenger of Allah (peace and blessings be upon him). I woke up during the night and could see nothing in the camp taller than the back of my saddle; every person and camel was clinging to the ground (asleep). I made my way between the people until I reached the bed of the Messenger of Allah (peace and blessings be upon him), but he (peace and blessings be upon him) was not there. I put my hand on the bed and it was cold. I went out between the people saying: Inna lillahi wa inna ilayhi raji'un (We belong to Allah and to Him we return), the Messenger of Allah (peace and blessings be upon him) has been taken away somewhere! until I went out beyond the whole camp. I saw a dark shape, so I threw a stone and went towards it, and there were Sayyiduna Mu'adh bin Jabal and Sayyiduna Abu Ubaydah bin al-Jarrah (may Allah be pleased with them both). In front of us there was a sound like the whirring of a mill, or like the rustling of reeds when the wind blows on them. We said to one another: O people, stay firmly here until morning comes or the Messenger of Allah (peace and blessings be upon him) comes. The narrator says: We stayed as long as Allah willed; then he (peace and blessings be upon him) called out: "Are Mu'adh bin Jabal, Abu Ubaydah bin al-Jarrah and Awf bin Malik there?" We said: Yes. So he (peace and blessings be upon him) came towards us, and we walked along with him (peace and blessings be upon him); we did not ask him (peace and blessings be upon him) anything, nor did he (peace and blessings be upon him) tell us anything, until he (peace and blessings be upon him) sat on his bed and said: "Do you know what my Lord gave me a choice between tonight?" We said: Allah and His Messenger know best. He (peace and blessings be upon him) said: "My Lord gave me a choice between having half of my Ummah admitted into Paradise, or being granted the station of intercession, and I chose intercession." We said: O Messenger of Allah, pray to Allah to make us among those who receive intercession. He (peace and blessings be upon him) said: "It is for every Muslim." This hadith is sahih on the condition of Imam Muslim, but both of them did not narrate it. All of its narrators are trustworthy on the condition of the two Shaykhs, there is no hidden defect ('illah) in it, and the other narrations about intercession do not contain the words that it is for every Muslim.

It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) never fought any people until he (peace and blessings be upon him) had (first) invited them (to Islam). This is a sahih hadith through the narration of Imam al-Thawri, but both of them did not report it, although Imam Muslim used Abu Najih (who is the father of Abdullah, and whose name is Yasar) as evidence; he is one of the Makkan freedmen (mawali). This same hadith is also narrated with these very words from Sayyiduna Ali bin Abi Talib (may Allah be pleased with him). Both of them (Imam Bukhari and Muslim) agreed on recording the hadith of Abdullah bin Awn in which (he says): I wrote to Nafi', the freedman of Ibn Umar, asking him about (giving) the invitation to Islam before fighting, and he wrote to me that the Messenger of Allah (peace and blessings be upon him) raided Banu al-Mustaliq (the rest of the hadith), and in it is the mention that the invitation was given before fighting.

It is narrated from Sayyiduna Rabi'ah bin Ibad al-Du'ali (may Allah be pleased with him); he said: I saw the Messenger of Allah (peace and blessings be upon him) at Mina, by their tents, before the emigration to Madinah. He (peace and blessings be upon him) was saying: "O people, Allah commands you to worship Him alone and not to associate anything with Him." He said: Behind him (peace and blessings be upon him) was a man saying: O people, this man is commanding you to abandon the religion of your forefathers. I asked: Who is this man? I was told: This is Abu Lahab. This hadith is sahih on the condition of the two Shaykhs, and all of its narrators are trustworthy and precise. Perhaps both of them, or one of them, imagined that Rabi'ah bin Ibad has no narrator other than Muhammad bin al-Munkadir, whereas Abu al-Zinad Abdullah bin Dhakwan also narrated this very hadith from him.

It is narrated from Sayyiduna Rabi'ah bin Ibad al-Du'ali (may Allah be pleased with him); he said: I saw the Messenger of Allah (peace and blessings be upon him) in the time of Ignorance (Jahiliyyah) in the market of Dhu al-Majaz. He (peace and blessings be upon him) was saying: "O people, say 'La ilaha illallah' (There is no god but Allah), and you will succeed." He said: He (peace and blessings be upon him) was repeating it again and again, and the people had gathered around him (peace and blessings be upon him) and were following him (peace and blessings be upon him), while behind him (peace and blessings be upon him) was a squint-eyed man with two braids of hair and a bright face, saying: He is one who has abandoned his religion, and a liar. I asked: Who is this? The people said: This is his uncle, Abu Lahab. I have cited Abd al-Rahman bin Abi al-Zinad as corroboration following the example of the two of them (Imam Bukhari and Muslim), for both of them also cited him as corroboration.