Is it permissible to place the hand over the mouth while yawning during prayer?

Question:
This questioner also asks: If a person yawns during prayer, should he place his hand over his mouth? And is this considered an extra movement in the prayer?

Answer:
There is no blame on him for this; because he is commanded to do so. If he yawns during prayer, he places his hand over his mouth and does not open it wide. He strives not to open it wide, but he places his hand over his mouth; because the Messenger (peace and blessings be upon him) commanded this. This covers yawning in prayer and outside of prayer.

The presenter: May Allah reward you with good.