(29) باب فِي الرُّخْصَةِ فِي ذَلِكَ
Narrated 'Abd al-Rahman b. Abi Laila:
A man from the Companions of the Prophet (ﷺ) told me that the Messenger of Allah (ﷺ) prohibited cupping and perpetual fasting, but he had not made them unlawful showing mercy on his Companions. Thereupon he was asked: Messenger of Allah, you observe perpetual fast till dawn. He replied: I observe perpetual fast till dawn (for) my Lord gives me food and drink.
Reference: Sunan Abi Dawud 2374
In-book reference: Book 14, Hadith 62
English translation: Book 13, Hadith 2368