Sahih al-Bukhari 7551
Narrated `Imran:
I said, "O Allah's Messenger (ﷺ)! Why should a doer (people) try to do good deeds?' The Prophet (ﷺ) 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 ‏"‏‏.‏