Iyad bin Laqayt al-Sadusi إياد بن لقيط · The Book of Adornment

"The Messenger of Allah said: 'Change gray hair but do not imitate the Jews.'"

"Some people will dye their hair black like the breasts of pigeons at the end of time, but they will not even smell the fragrance of Paradise."

The Messenger of Allah granted a concession to 'Abdur-Rahman bin 'Awf and Az-Zubair bin Al-'Awwam allowing them to wear silken shirts because of scabies that they were suffering from.