Sunan an-Nasa'i 510
سنن النسائي#510SahihIt was narrated that Abu Salamah said:"We prayed at the time of 'Umar bin 'Abdul-'Aziz, then we went to Anas bin Malik and found him praying. when he finished he said to us: 'Have you prayed?' We said: 'We prayed Zuhr.' He said: 'I prayed 'Asr.' They said: 'You have prayed early.' He said: 'Rather I prayed as I saw my companions pray
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahHasan Isnaad
Al-AlbaniHasan Isnaad
Zubair Ali ZaiIsnaad Sahih
In-book reference: 6:17