Thabit bin Aslam Albanani ثابت بن أسلم البناني · Combing the Hair (Kitab Al-Tarajjul)

The Messenger of Allah (ﷺ) had hair which reached the lobes of his ears.

The Prophet (ﷺ) saw a boy with part of his head shaved and part left unshaven. He forbade them to do that, saying: Shave it all or leave it all.

I and my father came to the Prophet (ﷺ). He said to a man or to my father: Who is this? He replied: He is my son. He said: Do not commit a crime on him. He had stained his beard with henna.