It was narrated that Abu Bakr (RA) bin ‘Uthman bin Sahl bin Hunaif said: “I heard Abu Umamah bin Sahl say: ‘We prayed Zuhr with ‘Umar bin ‘ Abdul Aziz (RA) , then we went out and entered upon Anas bin Malik (RA), and we found him praying ‘Asr.” I said: “uncle, what is this prayer that you prayed?” He said: “Asr; this is the prayer of the Messenger of Allah ﷺ that we used to pray with him.” (Sahih)