I asked Anas, "Did the Prophet ﷺ dye his hair?" Anas replied, "The Prophet ﷺ did not have except a few grey hairs."  

سَأَلْتُ أَنَسًا أَخَضَبَ النَّبِيُّ ﷺ قَالَ لَمْ يَبْلُغِ الشَّيْبَ إِلاَّ قَلِيلاً  

I saw the Prophet ﷺ and saw some white hair below his lower lip above the chin.  

رَأَيْتُ النَّبِيَّ ﷺ وَرَأَيْتُ بَيَاضًا مِنْ تَحْتِ شَفَتِهِ السُّفْلَى الْعَنْفَقَةَ