Sahih Muslim #6737 · The Book of Destiny

Sahih MuslimImran b. Husain repotted that it was said to Allah's Messenger
Sahih Muslim · Book 46 · The Book of Destiny
Sahih Muslim · كتاب 46 · كتاب القدر
Has there been drawn a distinction between the people of Paradise and the denizens of hell? He said: Yes. It was again said: (If it is so), then What is the use of doing good deeds? Thereupon he said: Everyone is facilitated in what has been created for him.
حَدَّثَنَا يَحْيَى بْنُ يَحْيَى، أَخْبَرَنَا حَمَّادُ بْنُ زَيْدٍ، عَنْ يَزِيدَ الضُّبَعِيِّ، حَدَّثَنَا مُطَرِّفٌ، عَنْ عِمْرَانَ بْنِ حُصَيْنٍ، قَالَ قِيلَ يَا رَسُولَ اللَّهِ أَعُلِمَ أَهْلُ الْجَنَّةِ مِنْ أَهْلِ النَّارِ قَالَ فَقَالَ ‏
"‏ نَعَمْ ‏"‏ ‏.‏ قَالَ قِيلَ فَفِيمَ يَعْمَلُ الْعَامِلُونَ قَالَ ‏"‏ كُلٌّ مُيَسَّرٌ لِمَا خُلِقَ لَهُ ‏"‏ ‏.‏
Reference : Sahih Muslim 6737In-book reference : Book 46, Hadith 15