أَخْبَرَنَا عَمْرُو بْنُ عَلِيٍّ، قَالَ حَدَّثَنَا عَبْدُ الرَّحْمَنِ، عَنْ سُفْيَانَ، عَنْ إِيَادِ بْنِ لَقِيطٍ، عَنْ أَبِي رِمْثَةَ، رَضِيَ اللَّهُ عَنْهُ قَالَ أَتَيْتُ النَّبِيَّ صلى الله عليه وسلم وَرَأَيْتُهُ قَدْ لَطَخَ لِحْيَتَهُ بِالصُّفْرَةِ ‏.‏

It was narrated that Abu Rimthah said: "I came to the Prophet [SAW] and I saw that he had dyed his beard with yellow dye." Translation Not Available

Book Ref: Sunan An Nisai Book 48 Hadith 5084
Web Ref:  Sunan An Nisai Vol 6 Book 48 Hadith 5087

---