Q 1:
How authentic are the following two Hadiths?The Messenger of Allah (peace be upon him) said:
Fast and you will be healthy.
And:
Sleeping in Ramadan is an act of worship.
A:
First:
The phrase
Fast and you will be healthy
is a Da`if (weak) Hadith. It was related by
Al-Tabarany in Al-Awsat,
Abu Nu`aym on the authority of
Abu Hurayrah, and
Ibn `Ady on the authority of
Ibn `Abbas. The Sanad (chain of narrators) of this Hadith contains
Nahshal who has been judged by Hadith scholars as Matruk (a narrator whose Hadith transmission was discarded due to unreliability).
Second:
As far as we know, there is no Hadith that says: "Sleeping in Ramadan is an act of worship." However, one narration which reads:
The sleep of a fasting person is an act of worship
has been mentioned by
Al-Suyuty in Al-Jami` Al-Saghir. He attributed it to
Al-Bayhaqy but classified it as Da`if. The Sanad of this Hadith contains
Ma`ruf ibn Hassan who has been judged by scholars of Hadith as a weak narrator.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.