(4) باب الإحرام وما يتعلق به
A'ishah (RAA) narrated, 'I used to apply perfume to the Prophet (ﷺ) when he intended to enter the state of Ihram, before he put on his Ihram (garments). And again when he ended his state of Ihram, but before he had made Tawaf around the Ka'bah.' Agreed upon.
Reference: Bulugh al-Maram 732
In-book reference: Book 6, Hadith 25
English translation: Book 6, Hadith 751