Sahih Muslim Book 007, Hadith Number 2685.
Chapter : Applying of perfume to the body before entering upon the state of Ihram.
'Uthman b. 'Urwa reported on the authority of his father that he said: I asked 'Aisha with what thing she perfumed the Messenger of Allah (may peace be upon him) at the time of entering upon the state of Ihram. She said: With the best of perfume.