It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that when the Prophet (peace and blessings be upon him) returned from Hajj, Jihad, or Umrah, whenever he ascended a high place on the land, he would say Allahu Akbar three times and recite this supplication: "Allah is the Greatest, Allah is the Greatest, there is no deity except Allah, He is alone, He has no partner, to Him belongs the dominion and to Him belongs all praise, and He has power over all things. We are returning in repentance, in prostration, in worship, and in praise of our Lord. Allah has fulfilled His promise, helped His servant, and defeated all the armies alone."

It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) used to perform two rak‘ahs before the Zuhr prayer and two rak‘ahs after it, and also two rak‘ahs in his house after Maghrib, and two rak‘ahs after ‘Isha, and two rak‘ahs in his house after Jumu‘ah.

It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) forbade the sale of Muzabanah. Muzabanah means selling dates that have been cut for dates that are still on the trees, and selling grapes for raisins, by estimation.

Nafi' (may Allah have mercy on him) says that Sayyiduna Ibn Umar (may Allah be pleased with them both) set out for 'Umrah during the days of trial of Sayyiduna Abdullah bin Zubair (may Allah be pleased with him) and said: "If we are prevented from (reaching) the House of Allah, we will do as the Prophet (peace and blessings be upon him) did."

Nafi’ (may Allah have mercy on him) says that once Abdullah ibn Umar (may Allah be pleased with them both) gave his wife a divorce while she was in her menstrual period. Umar (may Allah be pleased with him) asked the Prophet (peace and blessings be upon him) about this issue, so the Prophet (peace and blessings be upon him) ordered that he should take her back and wait until she has her menstrual period again and then wait until she becomes pure. Then, before approaching his wife, if he wishes, he may divorce her, and if he wishes, he may keep her. This is the method according to which Allah has given men permission to divorce their wives.

It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that once the Prophet (peace and blessings be upon him) carried out the punishment of stoning on a Jewish man and woman.

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: "Do not intend to pray at the time of sunrise or sunset."

It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him), during journeys on cold nights or rainy nights, would announce the prayer and then proclaim that everyone should pray in their own tents.

It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) prescribed Zakat al-Fitr of one sa’ of dates or one sa’ of barley upon all Muslims, male and female, free and slave.

It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) forbade meeting traders before their goods reach the market, and from deceptive sales, and that none of you should sell over the sale of his brother.