Abu Huraira reported God’s Messenger as saying, “Yawning during prayer comes from the devil, so when one of you yawns he must restrain it as much as possible.”
Tirmidhi transmitted it. In another version by him and by Ibn Majah it says, “He should put his hand over his mouth.”
I prayed behind God's Messenger, and on sneezing I said, “Praise be to God, great, good, blessed and abounding in good, as our Lord wishes and is pleased with.” When God's Messenger finished his prayer he moved away and asked, “Who was it who spoke during the prayer?” but no one replied. He asked a second time, but no one replied. He asked a third time, and Rifa'a said, “I did, Messenger of God.” Thereupon the Prophet said, “By Him in whose hand my soul is, over thirty angels raced to it to see which of them would ascend with it.”
Ka‘b b. ‘Ujra reported God’s Messenger as saying, “When one of you performs ablution and does it well, then goes out making for the mosque, he must not interwine his fingers for he is engaged in prayer.”
Ahmad, Tirmidhi, Abu Dawud, Nasa’i and Darimi transmitted it.
Ibu ‘Umar said he asked Bilal how the Prophet responded to them when they greeted him while he was engaged in prayer, and he replied, “He used to make a sign with his hand.”
Tirmidhi transmitted it. In Nasa'i’s version there is something similar, but Suhaib occurs instead of Bilal.
