وَعَنْ أَبِي هُرَيْرَةَ
قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «لَا تَقُومُ السَّاعَةُ حَتَّى تَنْفِيَ الْمَدِينَةُ شِرَارَهَا كَمَا يَنْفِي الْكِيرُ خَبَثَ الْحَدِيد»
The Prophet (sallallahu alayhi wa sallam) said:, “The last hour will not come before Medina drives away its wicked people as the bellows drives away the impurity of iron.”
Mishkat al-Masabih 2627, Book 11, The Rites of Pilgrimage, Hadith 229. 1 min read