Sunan an-Nasa'i 5054
سنن النسائي#5054SahihIt was narrated that Humaid bin 'Abdur-Rahman Al-Himyari said:"I met a man who accompanied the Prophet [SAW] as Abu Hurairah accompanied him for four years, who said: 'The Messenger of Allah [SAW] forbade us from combing our hair everyday
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 ZaiHasan
In-book reference: 48:15