The Book of Pilgrimage (Kitab Al-Hajj)

Muslim :: Book 7 : Hadith 3194

Abu Huraira (Allah be pleased with him) reported that Abu'I-Qasim (Mubammad, may peace be upon him) said: He who intends to do harm to the people of this city (that is, Medina). Allah would efface him as salt is dissolved in water.

Source materials are from the University of Southern California MSA site
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