'Abdullah said, "When one of you sneezes, he should say, 'Praise
be to Allah, the Lord of the Worlds.' Let anyone responding to him say
'May Allah have mercy on you.' Then the person who sneezed should say'May
Allah forgive me and you.'"
Nafi' said that when 'Abdullah ibn 'Umar sneezed, they said
to him, "May Allah have mercy on you," and Ibn 'Umar said, "May He have
mercy on us and you. May He forgive us and you."
حَدَّثَنَا عَاصِمُ بْنُ عَلِيٍّ، قَالَ: حَدَّثَنَا عِكْرِمَةُ، قَالَ: حَدَّثَنَا إِيَاسُ بْنُ سَلَمَةَ، عَنْ أَبِيهِ قَالَ: عَطَسَ رَجُلٌ عِنْدَ النَّبِيِّ صلى الله عليه وسلم فَقَالَ: يَرْحَمُكَ اللَّهُ، ثُمَّ عَطَسَ أُخْرَى، فَقَالَ النَّبِيُّ صلى الله عليه وسلم: هَذَا مَزْكُومٌ.
Iyas ibn Salama related that his father said, "A man sneezed in
the presence of the Prophet, may Allah bless him and grant him peace, and
the Prophet said, 'May Allah have mercy on you.' Then the man sneezed again
and the Prophet, may Allah bless him and grant him peace, said, 'This man
has a cold.'"
Abu Hurayra said, "Two men sat in the presence of the Prophet may
Allah bless him and grant him peace, and one of them was from a noble family
than the other. The nobler of the two sneezed and did not praise Allah,
so the Prophet did not ask for mercy for him. Then the other man sneezed
and praised Allah, so the Prophet, may Allah bless him and grant him peace,
asked for mercy on him. The noble man said, 'I sneezed in your presence
and you did not ask for mercy for me. This other than sneezed and you asked
for mercy on him.' The Prophet said, 'This man mentioned Allah, so I mentioned
him. You forgot Allah, so I forgot you.'"