Sunan Ibn Majah, Volume 4, Book 25, Hadith 3114 (DarusSalam) ⓘ
It was narrated from Abu Hurairah that the Messenger of Allah said: “Whoever wishes bad upon the people of Al-Madinah, Allah will cause him to melt as salt melts in water.”
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا عَبْدَةُ بْنُ سُلَيْمَانَ، عَنْ مُحَمَّدِ بْنِ عَمْرٍو، عَنْ أَبِي سَلَمَةَ، عَنْ أَبِي هُرَيْرَةَ، قَالَ قَالَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ " مَنْ أَرَادَ أَهْلَ الْمَدِينَةِ بِسُوءٍ أَذَابَهُ اللَّهُ كَمَا يَذُوبُ الْمِلْحُ فِي الْمَاءِ " .
also referenced under: Hadith 3114 (Reference) & Book 25, Hadith 3233 (In-Book)