Musnad Abu Ya'la al-Mawsili 154:12

Abu Yusuf Ya'qub ibn Ibrahim narrated to us, 'Abd al-'Aziz ibn Muhammad al-Darawardi narrated to us, Zayd ibn Aslam informed me that 'Abdullah ibn 'Umar used to dye his beard yellow with *khuluq* (a type of perfume containing saffron). It was said to him, "O Abu 'Abd al-Rahman, you dye your beard yellow with *khuluq*?" He said, "I saw the Messenger of Allah (may Allah bless him and grant him peace) dyeing with it, and there was no dye more beloved to him than it. He used to dye all his garments with it, even his turban."