Sunan an-Nasa'i 507
سنن النسائي#507SahihIt was narrated that Anas bin Malik said:"The Messenger of Allah (ﷺ) used to pray 'Asr when the sun was still high and bright, and a person could go to Al-'Awali [1] when the sun was still high." [1] Al-'Awali is the southern most district of Al-Madinah, and it is very big. Its nearest limit is at a distance of about two miles from the center of Al-Madinah. While its furthest limit is about eight miles
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiSahih - Agreed Upon
In-book reference: 6:14