Sunan an-Nasa'i 5243
سنن النسائي#5243SahihIt was narrated that 'Ubaid said:"I saw Ibn 'Umar dyeing his beard yellow and I asked him about that. 'He said: "I saw the Prophet [SAW] dye his beard yellow
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: 48:204