The Ruling on Yawning and Excessive Movement in Prayer

Question:
May Allah reward you. This is a Sudanese caller whose code name is Am Dan. He asks and says: Honorable Shaykh, what is the ruling on yawning in prayer and excessive movement? Is yawning in prayer disliked? And if it happens, he should suppress it as much as he can. If he cannot suppress it, he should place his hand over his mouth so that no sound comes out, unlike what some of the ignorant do; rather, he should yawn with a low voice.

Answer:
He places his hand over his mouth after trying to suppress it as much as he can. As for slight movement, if it is for a need, there is nothing wrong with it; slight movement for a need is permissible. As for excessive, continuous movement that is not for a need but rather for fidgeting, this invalidates the prayer. If the movements are numerous by custom and continuous—meaning not scattered—and not for a need, they invalidate the prayer. However, if they are slight and not for a need, they are numerous. Yes.