كتاب الجنة وصفة نعيمها وأهلها
53  
The Book of Paradise, its Description, its Bounties and its Inhabitants
(7)
Chapter: The Attributes Of Paradise And Its People, And Their Glorifying Allah Every Morning And Evening
(7)
باب فِي صِفَاتِ الْجَنَّةِ وَأَهْلِهَا وَتَسْبِيحِهِمْ فِيهَا بُكْرَةً وَعَشِيًّا ‏‏
Sahih Muslim 2835 c

Jabir b. Abdullah reported that Allah's Messenger (ﷺ) said that the inmates of Paradise would eat therein and they would also drink, but they would neither void excrement, nor suffer catarrh, nor pass water, and their eating (would be digested) in the form of belching and their sweat would be musk aged they would glorify and praise Allah as easily ai you breathe.

وَحَدَّثَنِي الْحَسَنُ بْنُ عَلِيٍّ الْحُلْوَانِيُّ، وَحَجَّاجُ بْنُ الشَّاعِرِ، كِلاَهُمَا عَنْ أَبِي عَاصِمٍ، - قَالَ حَسَنٌ حَدَّثَنَا أَبُو عَاصِمٍ، - عَنِ ابْنِ جُرَيْجٍ، أَخْبَرَنِي أَبُو الزُّبَيْرِ، أَنَّهُ سَمِعَ جَابِرَ بْنَ، عَبْدِ اللَّهِ يَقُولُ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ يَأْكُلُ أَهْلُ الْجَنَّةِ فِيهَا وَيَشْرَبُونَ وَلاَ يَتَغَوَّطُونَ وَلاَ يَمْتَخِطُونَ وَلاَ يَبُولُونَ وَلَكِنْ طَعَامُهُمْ ذَاكَ جُشَاءٌ كَرَشْحِ الْمِسْكِ يُلْهَمُونَ التَّسْبِيحَ وَالْحَمْدَ كَمَا يُلْهَمُونَ النَّفَسَ ‏"‏ ‏.‏ قَالَ وَفِي حَدِيثِ حَجَّاجٍ ‏"‏ طَعَامُهُمْ ذَلِكَ ‏"‏ ‏.‏
Reference : Sahih Muslim 2835c
In-book reference : Book 53, Hadith 23
USC-MSA web (English) reference : Book 40, Hadith 6800
  (deprecated numbering scheme)