When a Muslims sneezes, he can say: Al-hamdu Lillah or Al-hamdu-Lillah ‘ala kulli haal or Al-hamdu-Lillah Rabb il-‘Alamin. The one who hears him can say: Yarhamuk Allah. If he says, ‘Yarhamuk-Allah,’ then let (the sneezer) say, ‘Yahdikum Allah wa yuslihu balakum.’”