Sayyiduna Abu Umamah bin Sahl bin Hunaif narrates: We performed the Zuhr prayer behind Umar bin Abdul Aziz, then we left from there and went to the service of Sayyiduna Anas bin Malik (may Allah be pleased with him), and we found him performing the Asr prayer. I said: O uncle, which prayer is this that you have performed? He replied: This is the prayer of the Prophet Muhammad (peace be upon him), the prayer which we used to perform behind him (peace be upon him). (Imam Ibn Hibban, may Allah have mercy on him, says:) Amr bin Yahya Mazni narrated this report from Khalid bin Khallad, who is related to Banu Najjar. He narrates: I performed the Zuhr prayer behind Umar bin Abdul Aziz, then I went to the service of Sayyiduna Anas bin Malik (may Allah be pleased with him) and found him performing the Asr prayer. When he completed the prayer, I said: Which prayer have you performed? He said: Asr. I said: We have just come after performing the Zuhr prayer behind Umar bin Abdul Aziz. He said: I saw the Prophet Muhammad (peace be upon him) performing this prayer in this manner, so I will never abandon it.