حَدَّثَنَا إِسْمَاعِيلُ، عَنْ مَالِكٍ، عَنْ نَافِعٍ، عَنْ عَبْدِ اللهِ بْنِ عُمَرَ، أَنَّهُ كَانَ إِذَا عَطَسَ فَقِيلَ لَهُ: يَرْحَمُكَ اللَّهُ، فَقَالَ: يَرْحَمُنَا اللَّهُ وَإِيَّاكُمْ، وَيَغْفِرُ لَنَا وَلَكُمْ.
It is narrated from Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) that when he sneezed and «يرحمك الله» was said to him, he would say: May Allah have mercy on us and on you, and may He forgive us and you as well.