Sahih Bukhari
Sahih Bukhari Volume 002, Book 026, Hadith Number 612.
Hadith Section/Book: Sahih Bukhari Sahih Bukhari Book 26. Pilgrimmage (Hajj)
Narated By '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).