I used to perfume Allah's Messenger (ﷺ) with the best scent available till I saw the shine of the scent on his head and shine beard.
Sahih al-Bukhari Book 77, Hadith 138
← Previous Hadith I applied perfume to the Prophet (ﷺ) with my own hands when he wanted to assume the state of Ihram, and I also perfumed him at Mina before he departed from there (to perform Tawaf-al-Ifada).

Sahih al-Bukhari Book 77, Hadith 137 Next Hadith → A man peeped into the house of the Prophet (ﷺ) through a hole while the Prophet (ﷺ) was scratching his head with a Midrai (a certain kind of comb). On that the Prophet (ﷺ) said (to him), "If I had known you had been looking, then I would have pierced your eye with that instrument, because the asking of permission has been ordained so that one would not see things unlawfully."

Sahih al-Bukhari Book 77, Hadith 139