at that critical time the plans of quraish utterly failed despite the tight siege they laid to the prophet’s house, the prophet [pbuh] and ‘ali were inside the house. the prophet [pbuh] told ‘ali to sleep in his bed and cover himself with his green mantle and assured him full security under allâh’s protection and told him that no harm would come to him. the prophet [pbuh] then came out of the room and cast a handful of dust at the assassins and managed to work his way through them reciting verses of the noble qur’ân:

"and we have put a barrier before them, and a barrier behind them, and we have covered them up, so that they cannot see." [al-qur'an 36:9]