Hadith on Manners: Sneezing and its proper etiquette

Abu Huraira reported: The Prophet, peace and blessings be upon him, said, “When one of you sneezes, let him say: Allah praise is due to Allah. Let his brother or companion say: May Allah have mercy on you. When he invokes the mercy of Allah upon him, let him say: May Allah guide you and amend your affairs.

Source: Ṣaḥīḥ al-Bukhārī 6224

Grade: Sahih (authentic) according to Al-Bukhari

عَنْ أَبِي هُرَيْرَةَ عَنِ النَّبِيِّ صَلَّى اللهُ عَلَيْهِ وَسَلَّمَ قَالَ إِذَا عَطَسَ أَحَدُكُمْ فَلْيَقُلْ الحَمْدُ لِلَّهِ وَلْيَقُلْ لَهُ أَخُوهُ أَوْ صَاحِبُهُ يَرْحَمُكَ اللَّهُ فَإِذَا قَالَ لَهُ يَرْحَمُكَ اللَّهُ فَلْيَقُلْ يَهْدِيكُمُ اللَّهُ وَيُصْلِحُ بَالَكُمْ

6224 صحيح البخاري كتاب الأدب باب إذا عطس كيف يشمت