"I saw Ibn 'Umar dyeing his beard yellow and I asked him about that. 'He said: "I saw the Prophet dye his beard yellow."
Sunan an-Nasa'i Book 48, Hadith 204
← Previous Hadith "Abu Quhafah was brought to the Messenger of Allah said: 'Change this, or dye it.'"

Sunan an-Nasa'i Book 48, Hadith 203 Next Hadith → "The Prophet used to wear Sibtiyyah sandals and dye his beard yellow with Wars and saffron." And Ibn 'Umar used to do that.

Sunan an-Nasa'i Book 48, Hadith 205