Sunan an-Nasa'i 5233
سنن النسائي#5233SahihIt was narrated that Al-Bara' said:"I never saw any long haired man in a Hullah who was more handsome than the Messenger of Allah [SAW], and he had hair that came down to his shoulders
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 Muslim
In-book reference: 48:194