What is the ruling on raising one's voice while yawning in prayer?

Question:
He says: Honorable Shaykh, may Allah grant you success, some people, when they pray, yawn loudly.

Answer:
It is not permissible for him to raise his voice while yawning. First, because the letters become distinct; when he raises his voice while yawning, the letters and the sound become apparent, so it is not permissible. For this reason, it came in the hadith that indicates laziness and lethargy. So if yawning overcomes him, first he should try not to yawn. If yawning overcomes him, he should lower his voice, lower his voice, and place his hand over his mouth. Yes, this applies in prayer and outside of prayer, but in prayer it is even more so. Yes.