Ibn ‘Umar used to make his beard yellow with a yellow dye so that his clothes were full of it. He was asked why he used the yellow dye and replied, "I saw God's messenger using it as a dye, and he liked nothing better than it. He used to dye all his clothes with it, even his turban.”
Abu Dawud and Nasa’i transmitted it.
Abu Huraira told that a mukhannath who had dyed his hands and feet with henna was brought to God’s messenger who asked, "What is the matter with this man?” On being told that he affected women’s get-up he ordered him to be banished to an-Naqi'. The people suggested that they should kill him, but he said, “I have been prohibited from killing people who pray.”
Abu Dawud transmitted it.
Thabit told that when Anas was asked whether the Prophet dyed his hair he replied, "If I had wanted to count the hoary hairs which were on his head I could have done so,” adding that he did not dye his hair. In a version he added that Abu Bakr dyed his hair with henna and katam, and ‘Umar dyed it with henna alone.
(Bukhari and Muslim.)