Al-Adab Al-Mufrad, Book 40, Hadith 940 (In-Book) ⓘ
Abu Musa said, "The Jews used to sneeze in the presence of the Prophet, may Allah bless him and grant him peace, hoping that he would say to them, 'May Allah have mercy on you.' He used to say to them, 'May Allah guide you and put you in order.'"
حَدَّثَنَا مُحَمَّدُ بْنُ يُوسُفَ، قَالَ: حَدَّثَنَا سُفْيَانُ، عَنْ حَكِيمِ بْنِ الدَّيْلَمِ، عَنْ أَبِي بُرْدَةَ، عَنْ أَبِي مُوسَى قَالَ: كَانَ الْيَهُودُ يَتَعَاطَسُونَ عِنْدَ النَّبِيِّ صلى الله عليه وسلم رَجَاءَ أَنْ يَقُولَ لَهُمْ: يَرْحَمُكُمُ اللَّهُ، فَكَانَ يَقُولُ: يَهْدِيكُمُ اللَّهُ، وَيُصْلِحُ بَالَكُمْ.
also referenced under: Hadith 940 (Reference) & Book 40, Hadith 940 (English)