question #1 Sahih Muslim 1103b, Book 13, Hadith 73 : Why is it advised to abstain from continuous fasting without breaking it?

Abstain from Saum-Wisal. They (his Companions) said: Messenger of Allah, but you observe Saum Wisal. Upon this he said: You are not like me in this matter, for I spend my night (in a state) that my Lord feeds me and provides me drink Devote yourselves to the deeds (the burden of which) you can bear.