عَنْ أَبِي مُوسَى قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «أَطْعِمُوا الْجَائِعَ وَعُودُوا الْمَرِيض وفكوا العاني» . رَوَاهُ البُخَارِيّ

Abu Huraira reported God’s messenger as saying, “A Muslim has five duties towards another Muslim

to return a salutation, visit the sick, follow funerals, accept an invitation and say ‘God have mercy on you’ when one sneezes.”(Bukhari and Muslim.)