Sahih Bukhari
Pilgrimmage (Hajj)
Volume: 002 / Book Number: 026 / Hadith Number: 596
Narrated Abu Huraira:
The Prophet (p.b.u.h) said, "Whoever performs Hajj for Allah's pleasure and does not have sexual relations with his wife, and does not do evil or sins then he will return (after Hajj free from all sins) as if he were born anew."