Riyad as-Salihin 230
'Aishah (May Allah bepleased with her) reported:
The Prophet (ﷺ) prohibited his Companions out of mercy for them, from observing continuous fasting without a break. They said: "But you observe fast continuously". He replied, "I am not like you. I spend the night while my Rubb provides me with food and drink". [Al-Bukhari and Muslim] . (This means that Allah has bestowed upon him the power of endurance like that of a person who eats and drinks).
وعنها رضي الله عنها قالت‏:‏ نهاهم النبي صلى الله عليه وسلم عن الوصال رحمة لهم، فقالوا‏:‏ إنك تواصل‏؟‏ قال‏:‏ ‏
"‏إني لست كهيئتكم، إني أبيت يطعمني ربي ويسقيني ‏"‏ ‏(‏‏(‏متفق عليه‏)‏‏)‏.‏

‏‏معناه يجعل في قوة من أكل وشرب.