Weak (da'if) — scholars do not use this report as evidence for rulings.
Narrated AbuBakrah: The Prophet (ﷺ) said: One of you should not say: I fasted the whole of Ramadan, and I prayed during the night in the whole of Ramadan. I do not know whether he disliked the purification; or he (the narrator) said: He must have slept a little and taken rest