“I see that you dye your beard yellow with Wars.” Ibn ‘Umar said: “As for my dyeing of my beard yellow with Wars, I saw the Messenger of Allah (ﷺ) dyeing his beard yellow.”
Sunan Ibn Majah Book 32, Hadith 77
← Previous Hadith “The Messenger of Allah (ﷺ) said: ‘The best thing with which you can dye your hair is this black (dye). It makes your women desire you and creates fear in the hearts of your enemies.’”

Sunan Ibn Majah Book 32, Hadith 76 Next Hadith → “The Prophet (ﷺ) passed by a man who had dyed his hair with henna and said: ‘How handsome this is!’ Then he passed by another who had dyed his hair with henna and Katam, and said: ‘This one is more handsome than that one.’ Then he passed by another who had dyed his hair yellow and said: ‘This one is more handsome than all of them.’”

Sunan Ibn Majah Book 32, Hadith 78