Sahih al-Bukhari, Volume 9, Book 93, Hadith 641 (USC-MSA) ⓘ
Narrated `Imran: I said, "O Allah's Messenger! 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.'
حَدَّثَنَا أَبُو مَعْمَرٍ، حَدَّثَنَا عَبْدُ الْوَارِثِ، قَالَ يَزِيدُ حَدَّثَنِي مُطَرِّفُ بْنُ عَبْدِ اللَّهِ، عَنْ عِمْرَانَ، قَالَ قُلْتُ يَا رَسُولَ اللَّهِ فِيمَا يَعْمَلُ الْعَامِلُونَ قَالَ " كُلٌّ مُيَسَّرٌ لِمَا خُلِقَ لَهُ " .
also referenced under: Book 97, Hadith 176 (In-Book) & Hadith 7551 (DarusSalam)