It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "I have been sent with the sword before the Hour so that only Allah, Who has no partner, is worshipped. My sustenance has been placed under the shadow of my spear. Humiliation has been decreed for those who oppose my commands, and whoever imitates a people is counted among them."

It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Prophet (peace and blessings of Allah be upon him) prayed two rak'ahs of prayer inside the Ka'bah.

Abu Najih says that once someone asked Sayyiduna Ibn Umar (may Allah be pleased with them) about fasting on the day of Arafah. He replied: I performed Hajj with the Prophet (peace and blessings be upon him), but he did not fast on that day. I performed Hajj with Sayyiduna Abu Bakr, Sayyiduna Umar, and Sayyiduna Uthman (may Allah be pleased with them), but they also did not fast on that day. I neither fast on that day nor do I command it, nor do I forbid it.

It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "If a person has any right due upon him from someone, then two nights should not pass in such a way that his will is not written and kept with him."

It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) said: "When any one of you dies, his abode is presented before him morning and evening. If he is among the people of Paradise, then the abode of the people of Paradise is shown to him, and if he is among the people of Hell, then the abode of the people of Hell is shown to him, and it is said: 'This is your abode until you are resurrected.'"

Nafi’ (may Allah have mercy on him) says that once, a sudden piece of news regarding Lady Safiyyah (may Allah be pleased with her) reached Sayyiduna Ibn ‘Umar (may Allah be pleased with them both), so he set out and in one night covered the distance usually traveled in three nights. He continued traveling until evening. I mentioned the prayer to him, but he paid no attention and kept going, until darkness began to fall. Then Salim or another man said to him,“It is very late in the evening, please perform the prayer.”He replied,“When the Prophet (peace and blessings be upon him) was in a hurry while traveling, he would combine these two prayers, and I also intend to combine these two, so keep moving.”So they continued traveling until the twilight disappeared, then he dismounted and performed both prayers together.

Yunus bin Jubair (may Allah have mercy on him) once asked Sayyiduna Ibn Umar (may Allah be pleased with them both) about a man who divorces his wife during her menstrual period. He replied, "Do you know Abdullah bin Umar (may Allah be pleased with them both)?" I said, "Yes!" He said, "He also divorced his wife during her menstrual period. Sayyiduna Umar (may Allah be pleased with him) went and informed the Prophet (peace and blessings be upon him) about this, so the Prophet (peace and blessings be upon him) said: 'Tell him to take her back, then if he still wishes to divorce her, he should do so during her period of purity.'"

It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "The voluntary prayers of the night and day are (to be offered) two by two (rak‘ahs)."

Mus'ab bin Sa'd (may Allah have mercy on him) says that some people came to Ibn 'Amir to visit him during his illness and began to praise him. Sayyiduna Ibn 'Umar (may Allah be pleased with them both), who had been sitting silently before, said: "I will not deceive you more than them. The Prophet (peace and blessings be upon him) said: Allah does not accept charity from stolen spoils of war, nor does He accept prayer without purification."

Ibn Awn, may Allah have mercy on him, says that I wrote a letter to Nafi', may Allah have mercy on him, in which I asked him whether the polytheists were invited (to Islam) before fighting. He wrote back to me in reply that this used to happen in the beginning of Islam, and when the Prophet (peace and blessings of Allah be upon him) attacked Banu Mustaliq, those people were unaware and their animals were drinking water. The Prophet (peace and blessings of Allah be upon him) killed their fighting men, took the rest captive, and on that same day, Lady Juwayriya bint al-Harith (may Allah be pleased with her) came into his share. This hadith has been narrated to me by Sayyiduna Ibn Umar (may Allah be pleased with them both), who participated in the army.