CHAPTER: CONCERNING DOZING OFF IN PRAYER, OR FALTERING OF ONE'S TONGUE IN THE RECITATION OF THE QUR'AN, OR IN MENTIONING OF ALLAAH, ONE SHOULD SLEEP, OR STOP lT TILL ONE BECOMES LIVELY
No. 1718
'A'isha reported Allaah's Prophet (sallAllaahu alayhi wa sallam) as saying: When anyone amongst you dozes in prayer, he should sleep, till sleep is gone, for when one of you prays while dozing he does not know whether he may be asking pardon or vilifying himself.
No. 1719
Abu Huraira reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: When any one of you gets up at night (for prayer) and his tongue falters in (the recitation) of the Qar'an, and he does not know what he is reciting, he should go to sleep.