I asked Anas bin Malik, "Did the Messenger of Allah ﷺ dye his hair?"He replied, "He had not reached that point. There were only a few grey hairs at his temples. But Abu Bakr dyed his hair with henna and katam."
حدثنا عفان حدثنا همام
قلت لأنس بن مالك أخضب رسول الله ﷺ قال لم يبلغ ذلك إنما كان شيئا في صدغيه ولكن أبو بكر خضب بالحناء والكتم