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 use of) dubba’, hantam, muzaffat, and naqir.

Abdullah bin Malik says that once Sayyiduna Ibn Umar (may Allah be pleased with them) led the Maghrib and Isha prayers at Muzdalifah with a single iqamah. Khalid bin Malik asked him about this, so he replied: I have performed these prayers at this place with a single iqamah along with the Prophet (peace and blessings be upon him).

It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) forbade selling or gifting the right of wala.

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

It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) said: "Bilal gives the call to prayer during the night, so keep eating and drinking until Ibn Umm Maktum gives the call to prayer."

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) forbade the sale of fruits or dates until they are fully ripe. Someone asked Sayyiduna Ibn Umar (may Allah be pleased with them both) about the meaning of "ripening," so he replied that it means their afflictions have gone away.

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: "Whoever buys grain should not sell it before taking possession of it."

Abdullah bin Dinar (may Allah have mercy on him) says that once I and another man were with Sayyiduna Ibn Umar (may Allah be pleased with them). A man came, so Sayyiduna Ibn Umar (may Allah be pleased with them) said to both of us: "Move back a little, because the Prophet (peace and blessings be upon him) said: If there are three people, then two should not whisper to each other leaving the third one out."

Once, Sayyiduna Ibn Umar (may Allah be pleased with them both) instructed a man that when you come to your bed, recite this supplication: O Allah! You created me, You alone will cause me to die, my living and dying is also for You. If You grant me life, then protect it, and if You cause me to die, then forgive me. O Allah, I ask You for well-being. That person asked, "Did you hear this from Sayyiduna Umar (may Allah be pleased with him)?" He replied, "From the One who was even better than Sayyiduna Umar (may Allah be pleased with him), that is, from the Prophet (peace and blessings be upon 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: The night prayer consists of two rak‘ahs at a time. When you fear that morning is near, then add one rak‘ah to these two, and perform two rak‘ahs before Fajr.