Sahih Bukhari
Oneness, Uniqueness of Allah (Tawheed)
Volume: 009 / Book Number: 093 / Hadith Number: 579
Narrated Abu Dharr:
The Prophet said, Gabriel came to me and gave me the glad tidings that anyone who died without worshipping anything besides Allah, would enter Paradise. I asked (Gabriel), 'Even if he committed theft, and even if he committed illegal sexual intercourse?' He said, '(Yes), even if he committed theft, and even if he Committed illegal sexual intercourse."