Does a man's prayer become void if his shoulders or elbows are bare?

The prayer of one with bared elbows is valid by the consensus of the people of knowledge. As for the prayer of one with b bared shoulders, the people of knowledge have differed concerning its sufficiency. Prayer with bared elbows by rolling up the garment is valid, though disliked according to the most preponderant opinion, as it falls under the category of kaft (tucking up clothes during prayer), which is prohibited.