Sahih al-Bukhari 1961
Sahih al-Bukhari · Book 30: Fasting · To observe Saum (fast) continuously
Narrated Anas:
حَدَّثَنَا مُسَدَّدٌ ، قَالَ حَدَّثَنِي يَحْيَى ، عَنْ شُعْبَةَ ، قَالَ حَدَّثَنِي قَتَادَةُ ، عَنْ أَنَسٍ ـ رضى الله عنه ـ عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " لاَ تُوَاصِلُوا ". قَالُوا إِنَّكَ تُوَاصِلُ. قَالَ " لَسْتُ كَأَحَدٍ مِنْكُمْ، إِنِّي أُطْعَمُ وَأُسْقَى، أَوْ إِنِّي أَبِيتُ أُطْعَمُ وَأُسْقَى ".
The Prophet (ﷺ) said, "Do not practice Al-Wisal (fasting continuously without breaking one's fast in the evening or eating before the following dawn)." The people said to the Prophet, "But you practice Al- Wisal?" The Prophet (ﷺ) replied, "I am not like any of you, for I am given food and drink (by Allah) during the night."