أَخْبَرَنَا قُتَيْبَةُ، عَنْ عَبْدِ الْعَزِيزِ، عَنْ عُمَارَةَ بْنِ غَزِيَّةَ، عَنْ عَمْرِو بْنِ شُعَيْبٍ، عَنْ أَبِيهِ، عَنْ جَدِّهِ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم نَهَى عَنْ نَتْفِ الشَّيْبِ ‏.‏

It was narrated from 'Amr bin Shu'aib, from his father, from his grandfather, that: The Messenger of Allah [SAW] forbade plucking gray hairs. Translation Not Available

Book Ref: Sunan An Nisai Book 48 Hadith 5068
Web Ref:  Sunan An Nisai Vol 6 Book 48 Hadith 5071