أَخْبَرَنَا مُحَمَّدُ بْنُ الْمُثَنَّى، قَالَ حَدَّثَنَا عَبْدُ الصَّمَدِ، قَالَ حَدَّثَنَا الْمُثَنَّى، - يَعْنِي ابْنَ سَعِيدٍ - قَالَ حَدَّثَنَا قَتَادَةُ، عَنْ أَنَسٍ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم لَمْ يَكُنْ يَخْضِبُ إِنَّمَا كَانَ الشَّمَطُ عِنْدَ الْعَنْفَقَةِ يَسِيرًا وَفِي الصُّدْغَيْنِ يَسِيرًا وَفِي الرَّأْسِ يَسِيرًا ‏.‏

It was narrated from Anas that: The Messenger of Allah [SAW] did not dye his hair; his gray hair were only a little beneath his lower lip and at his temples, and a little on his head. Translation Not Available

Book Ref: Sunan An Nisai Book 48 Hadith 5087
Web Ref:  Sunan An Nisai Vol 6 Book 48 Hadith 5090