The Prophet (ﷺ) said twice, "(O you people) Be cautious! Do not practice Al-Wisal." The people said to him, "But you practice Al-Wisal?" The Prophet (ﷺ) replied, "My Lord gives me food and drink during my sleep. Do that much of deeds which is within your ability."
Sahih al-Bukhari Book 30, Hadith 73
← Previous Hadith Allah's Messenger (ﷺ) forbade Al-Wisal in fasting. So, one of the Muslims said to him, "But you practice Al- Wisal. O Allah's Messenger (ﷺ)!" The Prophet (ﷺ) replied, "Who amongst you is similar to me? I am given food and drink during my sleep by my Lord." So, when the people refused to stop Al-Wisal (fasting continuously), the Prophet (ﷺ) fasted day and night continuously along with them for a day and then another day and then they saw the crescent moon (of the month of Shawwal). The Prophet (ﷺ) said to them (angrily), "If It (the crescent) had not appeared, I would have made you fast for a longer period." That was as a punishment for them when they refused to stop (practicing Al-Wisal).

Sahih al-Bukhari Book 30, Hadith 72 Next Hadith → Allah's Messenger (ﷺ) said, "Do not fast continuously day and night (practice Al-Wisal) and if anyone of you intends to fast continuously day and night, he should continue till the Suhur time." They said, "But you practice Al-Wisal, O Allah's Messenger (ﷺ)!" The Prophet (ﷺ) said, "I am not similar to you;. during my sleep I have One Who makes me eat and drink."

Sahih al-Bukhari Book 30, Hadith 74