Sahih Bukhari
Pilgrimmage (Hajj)
Volume: 002 / Book Number: 026 / Hadith Number: 612
Narrated 'Aisha:
(the wife of the Prophet (p.b.u.h) I used to scent Allah's Apostle when he wanted to assume Ihram and also on finishing Ihram before the Tawaf round the Ka'ba (Tawaf-al-ifada).