Fortress of the Muslim
Hisn al-Muslim 223
Arabic hadith text
وَقَالَ صلى الله عليه وسلم: (مَا مِنْ أَحَدٍ يُسَلِّمُ عَلَيَّ إِلاَّ رَدَّ اللَّهُ عَلَيَّ رُوحِيَ حَتَّى أَرُدَّ عَلَيْهِ السَّلاَمَ)
Translation
The Prophet, peace and blessings be upon him, said: “No one sends greetings of peace upon me but Allah returns my soul to me so that I may return his greeting.”