other points related to a person without any clothes
If a person is confused about the qibla (Salät-direction) and he is unable to find another person to ask or help, then one should perform Salät on the basis of his guess.
If he performed Saläh based on his guess but later it turned out that his guess about the Saläh-direction was wrong, then also his Saläh will be valid.
However, if he comes to know of his error during his Saläh, he should turn towards the Saläh-direction immediately and continue with his Saläh.
If several of the organs to be hidden get bare during Salät and if the total of bare parts adds up to the size of a quarter of the smallest bare organ-to-be-hidden, then his Salät will be invalid.
However, if the total of the bare parts is less than the above mentioned amount, his Salät will be valid.