Hadith 211

“the Prophet (ﷺ) said, "Allah loves sneezing and hates yawning. When one of you sneezes and praises Allah Almighty, it is a duty for every Muslim who hears him to say to him, 'May Allah have mercy on you.' Yawning comes from Shaytan. When one of your yawns, he should control it as much as possible. When a man says, 'Aawh!' Shaytan laughs at him.”