It is narrated from Sayyiduna Jabir (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "There is no wisal (continuous fasting without breaking) in fasting."

It is narrated from Sayyiduna Abu Hurairah (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said twice: "Avoid continuous fasting (wisal)." It was asked: "Do you yourself observe wisal?" The Prophet (peace and blessings be upon him) replied: "(My condition is such that) I spend the night while my Lord feeds me and gives me drink. So you should only take on deeds according to your ability."