Sayyiduna Umar (may Allah be pleased with him) says that the last verse revealed in the Noble Qur'an was regarding usury, so the Prophet (peace and blessings be upon him) did not get the opportunity to fully explain it before his blessed passing. Therefore, abandon usury as well, and leave whatever contains even a little doubt.

Sayyiduna Abu Musa Ash'ari (may Allah be pleased with him) used to give the fatwa permitting Hajj Tamattu'. One day, a man came to him and said, "Hold back some of your fatwas; do you not know that behind you, the Commander of the Faithful has issued new rulings regarding the rites of Hajj?" When these two gentlemen met, Sayyiduna Abu Musa (may Allah be pleased with him) asked him about this. Sayyiduna Umar (may Allah be pleased with him) said, "I know that Hajj Tamattu' was performed by the Prophet (peace and blessings be upon him) and his companions as well, but I do not like that people spend the night with their wives under the shade of the peelu tree and then set out for Hajj in the morning while drops of water are still dripping from their heads."

Sayyiduna Abdur Rahman bin Awf (may Allah be pleased with him) narrates that once Sayyiduna Umar (may Allah be pleased with him) went for Hajj. There, in view of specific circumstances, he wanted to deliver a sermon, but Sayyiduna Abdur Rahman bin Awf (may Allah be pleased with him) said to him that at this time, a large number of the weaker section of people are present; you should postpone your sermon until you return to Madinah Munawwarah (because the people there are wise, they will understand your words, whereas these people may not understand properly and may cause unrest). Thus, when Sayyiduna Umar (may Allah be pleased with him) returned to Madinah Munawwarah, one day I went near the pulpit and heard him saying: Some people say, "What is the status of Rajm (stoning)? In the Book of Allah, only the punishment of lashes is mentioned." Whereas the Prophet (peace and blessings be upon him) also enforced the punishment of Rajm, and after him, we also did so. And if people did not say that Umar has added something to the Book of Allah which is not in it, I would have written the verse of this ruling on the margin of the Noble Qur'an.

It is narrated from Sayyiduna Umar (may Allah be pleased with him) that I saw with my own eyes the Messenger of Allah (peace and blessings be upon him) turning sides due to hunger, and he could not even find inferior dates with which he could fill his stomach.

It is narrated from Sayyiduna Umar (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "The deceased is punished in his grave because of the lamentation that is done over him."

It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that such people have testified to me (whose words are trustworthy, among them is Sayyiduna Umar (may Allah be pleased with him), who in my view is the most trustworthy of them all) that the Prophet (peace and blessings be upon him) forbade praying at two times: one is that after the Asr prayer until sunset, no voluntary prayer should be performed, and the other is that after the Fajr prayer until sunrise, no prayer should be performed.

Abu Uthman says that we were with Sayyiduna Utbah bin Farqad (may Allah be pleased with him) in Shaam or Azerbaijan when a letter from Sayyiduna Umar (may Allah be pleased with him) arrived, in which it was written that the Messenger of Allah (peace and blessings be upon him) forbade wearing silk clothing except for an amount equal to two fingers.

The previous hadith is also narrated through another chain of transmission.

Amr bin Maymoon says that once Sayyiduna Umar (may Allah be pleased with him) led us in the Fajr prayer at Muzdalifah and said that the polytheists would not return before sunrise and used to say, "Let Mount Thabir become bright." The Prophet (peace and blessings be upon him) did not follow their way and departed from Muzdalifah towards Mina before sunrise.

It is narrated from Sayyiduna Umar (may Allah be pleased with him) that once I asked the Messenger of Allah (peace and blessings be upon him): If I become impure at night, what should I do? The Prophet (peace and blessings be upon him) said: "Wash your private parts, perform ablution as for prayer, and then go to sleep."