Chapter 35: Combing the Hair (Kitab Al-Tarajjul)
Narrated Aisha, Ummul Mu' minin: Karimah, daughter of Hammam, told that a woman came to Aisha (Allah be pleased with her) and asked her about dyeing with henna. She replied: There is no harm, but I do not like it. My beloved, the Messenger of Allah (ﷺ), disliked its odour. Abu Dawud said: She meant the colour of hair of the head.
Sunan Abi Dawud 4164