464. In the case of sneezing Prophet (ﷺ)'s order #3
Narrated by Abu Hurairah (RA), that the Messenger of Allah (ﷺ) said: "Indeed Allah loves sneezing and He dislikes the yawn. So when one of you sneezes and says 'Al-Hamdulillah (All praise is due to Allah),' then it is a right due from every one who hears him to say: 'Yarhamukallah (May Allah have mercy upon you)' As for yawning then when one of you yawns let him suppress it as much as possible and not say: "Hah Hah' for that is only from Ash-Shaitan laughing at him."
Related Duas:
Dua to one who says 'May Allah bless you'
Upon receiving displeasing news
Dua of researcher, mufti and truth seeker
Dua upon sneezing #1
Dua at the end of a sitting/gathering [Kaffaratul Majlis]
Expressing gratitude to the benefactor
Manners in sneezing
In the case of sneezing Prophet (ﷺ)'s order #1
To one who has offered you some of his wealth
Returning a greeting to a kaafir
Etiquette in yawn
Blessings of anger control