Sa'id ibn al-Musayyib سعيد بن المسيب بن حزن أبو محمد القرشي · The Book of Adornment

"My father and I came to the Prophet and he had dyed his beard with Henna."

That when Mu'awiyah went on Hajj, he gathered together a group of the Companions of the Messenger of Allah forbid wearing gold?" They said: "Yes." He said: "And I bear witness to that."

"The Prophet used to wear a ring of gold, then he discarded it, and put on a ring of silver on which was engraved (the words): 'Muhammad Rasul Allah.' He said: 'No one else should engrave his ring with an inscription like this ring of mine.' Then he put the stone toward the palm of his hand."

That he had long thick hair. "He asked the Prophet (about it) and he told him to take care of it and comb it every day."

The Messenger of Allah parted his hair after that.

A man from among the Companions of the Prophet used to forbid too much of Al-Irfah." Ibn Buraidah was asked what too much of Al-Irfah meant, and he said: "It includes combing the hair."

"The Messenger of Allah forbade Ishtimal As-Samma' and wrapping oneself in a single garment (that did not cover the private parts)."