Al-Madina expels all the evil and bad persons
باب الْمَدِينَةُ تَنْفِي الْخَبَثَ
Sahih al-Bukhari, Book of Virtues of Madinah(view book)
Narrated Jabir:
A bedouin came to the Prophet and gave a pledge of allegiance for embracing Islam. The next day he came with fever and said (to the Prophet ), "Please cancel my pledge (of embracing Islam and of emigrating to Medina)." The Prophet refused (that request) three times and said, "Medina is like a furnace, it expels out the impurities (bad persons) and selects the good ones and makes them perfect."
حَدَّثَنَا عَمْرُو بْنُ عَبَّاسٍ، حَدَّثَنَا عَبْدُ الرَّحْمَنِ، حَدَّثَنَا سُفْيَانُ، عَنْ مُحَمَّدِ بْنِ الْمُنْكَدِرِ، عَنْ جَابِرٍ ـ رضى الله عنه ـ جَاءَ أَعْرَابِيٌّ النَّبِيَّ ﷺ فَبَايَعَهُ عَلَى الإِسْلاَمِ، فَجَاءَ مِنَ الْغَدِ مَحْمُومًا، فَقَالَ أَقِلْنِي، فَأَبَى ثَلاَثَ مِرَارٍ، فَقَالَ " الْمَدِينَةُ كَالْكِيرِ، تَنْفِي خَبَثَهَا، وَيَنْصَعُ طَيِّبُهَا ".
Classification
Narrated Zaid bin Thabit:
When the Prophet went out for (the battle of) Uhud, some of his companions (hypocrites) returned (home). A party of the believers remarked that they would kill those (hypocrites) who had returned, but another party said that they would not kill them. So, this Divine Inspiration was revealed: "Then what is the matter with you that you are divided into two parties concerning the hypocrites." (4.88) The Prophet ﷺ said, "Medina expels the bad persons from it, as fire expels the impurities of iron."
حَدَّثَنَا سُلَيْمَانُ بْنُ حَرْبٍ، حَدَّثَنَا شُعْبَةُ، عَنْ عَدِيِّ بْنِ ثَابِتٍ، عَنْ عَبْدِ اللَّهِ بْنِ يَزِيدَ، قَالَ سَمِعْتُ زَيْدَ بْنَ ثَابِتٍ ـ رضى الله عنه ـ يَقُولُ لَمَّا خَرَجَ النَّبِيُّ ﷺ إِلَى أُحُدٍ رَجَعَ نَاسٌ مِنْ أَصْحَابِهِ فَقَالَتْ فِرْقَةٌ نَقْتُلُهُمْ. وَقَالَتْ فِرْقَةٌ لاَ نَقْتُلُهُمْ. فَنَزَلَتْ {فَمَا لَكُمْ فِي الْمُنَافِقِينِ فِئَتَيْنِ} وَقَالَ النَّبِيُّ ﷺ " إِنَّهَا تَنْفِي الرِّجَالَ كَمَا تَنْفِي النَّارُ خَبَثَ الْحَدِيدِ ".