حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا عَلِيُّ بْنُ مُسْهِرٍ، عَنِ ابْنِ أَبِي لَيْلَى، عَنْ عِيسَى، عَنْ عَبْدِ الرَّحْمَنِ بْنِ أَبِي لَيْلَى، عَنْ عَلِيٍّ، قَالَ قَالَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ " إِذَا عَطَسَ أَحَدُكُمْ فَلْيَقُلِ الْحَمْدُ لِلَّهِ . وَلْيَرُدَّ عَلَيْهِ مَنْ حَوْلَهُ يَرْحَمُكَ اللَّهُ . وَلْيَرُدَّ عَلَيْهِمْ يَهْدِيكُمُ اللَّهُ وَيُصْلِحُ بَالَكُمْ " .
It was narrated from Ali that the Messenger of Allah(PBUH) said: "If anyone of you sneezes, let him say: Alhamdulillah (praise be to Allah). Those around him should respond by saying: Yarhamkullah (may Allah have mercy on you). And he should respond by saying: "Yahdikum Allah wa yuslaha balakum (may Allah Guide you and set right your state)." Translation Not Available
Book Ref: Sunan Ibn Majah Book 33 Hadith 3715
Web Ref: Sunan Ibn Majah Vol 5 Book 33 Hadith 3715