Prohibition of Laziness in Prayer

It is narrated within the tradition about the Prophets ascension that [Allah addressed the Prophet (SAWA) saying], ‘O Ahmad, how I wonder at three types of servant: one who starts his prayer knowing full well Who he raises his hands to and in front of Whom he stands, and yet remains drowsy …

Imam Ali (AS) said, ‘When sleep overcomes you while you are in your prayer, then break your prayer and go to sleep, for verily [in that state] you do not know if you are praying for or against yourself!

Imam al-Baqir (AS) said, ‘Do not stand for prayer lazily, drowsily or sluggishly for verily these are from among the disturbances brought about by hypocrisy, and verily Allah has prohibited the believers from standing for prayer while they are intoxicated, which means when intoxicated by sleep.