Narrated Ibn 'Umar:

The Messenger of Allah ﷺ prohibited perpetual fasting. They (the people) said: You keep perpetual fasting, Messenger of Allah. He said: My position is not like that you yours. I am provided with food and drink.

حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مَسْلَمَةَ الْقَعْنَبِيُّ، عَنْ مَالِكٍ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، أَنَّ رَسُولَ اللَّهِ نَهَى عَنِ الْوِصَالِ، قَالُوا فَإِنَّكَ تُوَاصِلُ يَا رَسُولَ اللَّهِ . قَالَ
" إِنِّي لَسْتُ كَهَيْئَتِكُمْ إِنِّي أُطْعَمُ وَأُسْقَى " .