(66) باب تَصْفِيرِ اللِّحْيَةِ بِالْوَرْسِ وَالزَّعْفَرَانِ
It was narrated that Ibn 'Umar said:
"The Prophet [SAW] used to wear Sibtiyyah sandals and dye his beard yellow with Wars and saffron." And Ibn 'Umar used to do that.
Reference: Sunan an-Nasa'i 5244
In-book reference: Book 48, Hadith 205
English translation: Vol. 6, Book 48, Hadith 5246