It is narrated from al-Hasan al-Basri that a Bedouin came to Sayyiduna Umar (may Allah be pleased with him) and asked him about the religion: O Commander of the Believers, teach me the religion. He said: Bear witness that there is no god but Allah and that Muhammad ((peace and blessings be upon him)) is the Messenger of Allah, establish the prayer, give the zakah, fast Ramadan and perform Hajj to the House (of Allah). Hold to what is done openly, and beware of what is done in secret, and beware of everything one would be ashamed of (before people). The man said: When I meet Allah, I will say: Umar bin al-Khattab commanded me to do this. He said: O servant of Allah, hold fast to this, and when you meet Allah, say whatever you wish. Imam al-Qabbani says: I asked Muhammad bin Yahya which of the two narrations is the preserved one (mahfuz): the hadith of Yunus from al-Hasan from Umar, or Nafi' from Ibn Umar? He said: The narration of al-Hasan is more likely. Imam al-Hakim says: May Allah be pleased with Muhammad bin Yahya; he refrained from answering out of scrupulousness, wary of going against his saying ((peace and blessings be upon him)): "Leave what makes you doubt for what does not make you doubt." Had he reflected on the two narrations, it would have become clear to him that their wordings are different: they are two musnad hadiths and a report. Nothing is preserved from Ubaydullah from Yunus bin Ubayd except the hadith about leadership, and al-Darawardi alone narrated it. Sa'id bin Abd al-Rahman al-Jumahi is trustworthy and reliable, and others besides Muhammad bin al-Sabbah have narrated it from him, although Muhammad bin al-Sabbah is also trustworthy and reliable.

It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that Sayyiduna Umar (may Allah be pleased with him) said (in the course of speaking): "No, by my father!" So the Messenger of Allah (peace and blessings be upon him) said: "Do not swear by your fathers. Whoever swears by anything other than Allah has committed shirk."

It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that Sayyiduna Umar (may Allah be pleased with him) used to swear saying "By my father", so the Prophet (peace and blessings be upon him) forbade him and said: "Whoever swears by anything other than Allah has committed shirk", or he said: "It is shirk."

It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) said: "Whoever swears by other than Allah has committed kufr (disbelief)." This hadith is sahih on the condition of the two Shaykhs, but they did not record it with this wording. I placed it in the Book of Faith (Kitab al-Iman) because of the word 'shirk' in it; and in the hadith of Mus'ab bin al-Miqdam from Isra'il it reads: "has committed kufr." As for the two Shaykhs, they recorded it only from the hadith of Salim, Nafi' and Abdullah bin Dinar from Ibn Umar, that the Prophet (peace and blessings be upon him) said to Umar: "Indeed Allah forbids you from swearing by your fathers", and that is all; this narration is different from that one.

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: "Reticence in speech and modesty are two branches of faith, and obscene speech and harshness are two branches of hypocrisy." This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), but they did not record it. It has an authentic supporting narration (shahid) on the condition of both of them:

It is narrated from Sayyiduna Abu Bakrah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Modesty is part of faith, and (the person of) faith will be in Paradise; obscene speech is part of harshness, and (the person of) harshness will be in the Fire." It has a second supporting narration on the condition of Muslim:

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: "Modesty is part of faith, and faith leads to Paradise; obscene speech is part of harshness, and harshness leads to the Fire."

It is narrated from Sayyidah Aishah (may Allah be pleased with her) that the Messenger of Allah (peace and blessings be upon him) said: "The most complete of the believers in faith is the one who is best of them in character and the most gentle and kind towards his family." All the narrators of this hadith are trustworthy on the condition of the two Shaykhs, but they did not record it with this wording.

It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that Quraysh said to the Prophet (peace and blessings be upon him): Pray to your Lord to turn (the mount of) al-Safa into gold for us, and we will believe in you. He ((peace and blessings be upon him)) asked: "Will you do so?" They said: Yes. So he ((peace and blessings be upon him)) prayed, and Jibril (peace be upon him) came and said: "Allah sends you greetings of peace and says: If you wish, al-Safa will become gold, but whoever disbelieves after that, I will punish him with a punishment with which I have not punished anyone in all the worlds; and if you wish, I will open for them the gates of repentance and mercy." He ((peace and blessings be upon him)) said: "Rather, the gate of repentance and mercy (is better)."

It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) preferred the gate of repentance and mercy over al-Safa turning into gold. This is a sahih and preserved (mahfuz) hadith from the narration of al-Thawri from Salamah bin Kuhayl. Imran bin al-Hakam al-Sulami is one of the senior Tabi'in who is used as evidence. The two of them (Bukhari and Muslim) left this hadith out only - and Allah knows best - because of a discrepancy in its chain from Yahya bin Salamah bin Kuhayl, and Yahya makes many errors in narrating from his father.