وَعَنْ أَبِي هُرَيْرَةَ رَضِيَ اللَّهُ عَنْهُ
قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «مَا مِنْ أَحَدٍ يُسَلِّمُ عَلَيَّ إِلَّا رَدَّ اللَّهُ عَلَيَّ رُوحِي حَتَّى أَرُدَّ عَلَيْهِ السَّلَامُ»
Abu Hurayrah reported God’s Messenger as saying, “No one will express a greeting to me without God restoring my spirit to me so that I may respond to his greeting.” It is transmitted by Abu Dawud and by Baihaqi in ad-daawat al-kabir.