What are the authentic hadiths reported concerning sneezing and yawning?

The topic of sneezing and yawning involves specific manners and remembrances (adhkar) related to them. Prophetic hadiths have clarified rulings concerning them. For one who sneezes and praises Allah, it is recommended to say to him, "Yarhamuk Allah" (May Allah have mercy on you). As for one who does not praise Allah, he should not be responded to with this supplication. Yawning, however, is from Satan, and it should be suppressed as much as possible, because Satan laughs at one who yawns. Hadiths to this effect have been narrated by Anas ibn Malik, Abu Musa, and Abu Hurayrah.