Sahih Bukhari
Oneness, Uniqueness of Allah (Tawheed)
Volume: 009 / Book Number: 093 / Hadith Number: 641
Narrated 'Imran:
I said, "O Allah's Apostle! Why should a doer (people) try to do good deeds?' The Prophet said, "Everybody will find easy to do such deeds as will lead him to his destined place for which he has been created.'