Jami' at-Tirmidhi
Jami` at-Tirmidhi 2744
حَدَّثَنَا الْقَاسِمُ بْنُ دِينَارٍ الْكُوفِيُّ، حَدَّثَنَا إِسْحَاقُ بْنُ مَنْصُورٍ السَّلُولِيُّ الْكُوفِيُّ، عَنْ عَبْدِ السَّلاَمِ بْنِ حَرْبٍ، عَنْ يَزِيدَ بْنِ عَبْدِ الرَّحْمَنِ أَبِي خَالِدٍ الدَّالاَنِيِّ، عَنْ عُمَرَ بْنِ إِسْحَاقَ بْنِ أَبِي طَلْحَةَ، عَنْ أُمِّهِ، عَنْ أَبِيهَا، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " يُشَمَّتُ الْعَاطِسُ ثَلاَثًا فَإِنْ زَادَ فَإِنْ شِئْتَ فَشَمِّتْهُ وَإِنْ شِئْتَ فَلاَ " . قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ غَرِيبٌ وَإِسْنَادُهُ مَجْهُولٌ .
Unreviewed translation. All hadiths in this collection are available in five languages. Titles and introductions may remain in Arabic.
‘Umar ibn Ishaq ibn Abi Talhah reported from his mother, from her father, that Allah’s Messenger said: ‘Invoke mercy for the one who sneezes three times. If he sneezes more than that, then you may invoke mercy for him if you wish, or you may refrain.’
Abu ‘Isa said: This is a gharib hadith, and its chain is unidentified.
Notes and open questions — unreviewed
The Arabic sets three as the point through which the response is given; any further response is left optional. The source explicitly calls the chain unknown.