It is narrated from (Abu Al-‘Aliyah) the Tabi‘i that he said: Allah said,“Complete the fast until the night.”(When night came, the fast was broken; this is reported by Ibn Abi Shaybah.) Because Allah the Exalted said (in Surah Al-Baqarah):“Then complete the fast until the night.”The Prophet (peace and blessings be upon him) forbade continuous fasting (wisal) (by the command of Allah the Exalted), out of mercy and compassion for the Ummah, so that their strength would remain, and because making worship hard upon oneself is disliked.

Narrated Anas: The Prophet 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 replied, "I am not like any of you, for I am given food and drink (by Allah) during the night."