Aslam

Praise be to Allah.If someone if in a congregational prayer behind the Imam and sees

the ‘awrah (those parts of the body that a man or a woman must

cover.) uncovered due to an opening in his clothes or due to his

clothes being thin and transparent, then if it is possible he should go

ahead and cover it with something, otherwise he should move and

come out of prayer and inform the Imam by saying “cover your

‘awrah” (in Arabic “ghatti il-‘awrah”), or “protect what has been

uncovered”. He must not stay quiet and continue to pray because it

is known that the Imam’s prayer (in the said condition) is incorrect

and following him is incorrect as well.1