A bedouin came to the Prophet ﷺ and gave a pledge of allegiance for embracing Islam. The next day he came with fever and said (to the Prophet ﷺ ), "Please cancel my pledge (of embracing Islam and of emigrating to Medina)." The Prophet ﷺ 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."  

عَنْ جَابِرٍ ؓ جَاءَ أَعْرَابِيٌّ النَّبِيَّ ﷺ فَبَايَعَهُ عَلَى الإِسْلاَمِ فَجَاءَ مِنَ الْغَدِ مَحْمُومًا فَقَالَ أَقِلْنِي فَأَبَى ثَلاَثَ مِرَارٍ فَقَالَ الْمَدِينَةُ كَالْكِيرِ تَنْفِي خَبَثَهَا وَيَنْصَعُ طَيِّبُهَا  

A bedouin came to the Prophet ﷺ and said, "Please take my Pledge of allegiance for Islam." So the Prophet took from him the Pledge of allegiance for Islam. He came the next day with a fever and said to the Prophet ﷺ "Cancel my pledge." But the Prophet ﷺ refused and when the bedouin went away, the Prophet said, "Medina is like a pair of bellows (furnace): It expels its impurities and brightens and clears its good."  

جَاءَ أَعْرَابِيٌّ إِلَى النَّبِيِّ ﷺ فَقَالَ بَايِعْنِي عَلَى الإِسْلاَمِ فَبَايَعَهُ عَلَى الإِسْلاَمِ ثُمَّ جَاءَ الْغَدَ مَحْمُومًا فَقَالَ أَقِلْنِي فَأَبَى فَلَمَّا وَلَّى قَالَ الْمَدِينَةُ كَالْكِيرِ تَنْفِي خَبَثَهَا وَيَنْصَعُ طِيبُهَا  

Yahya related to me from Malik from Muhammad ibn al-Munkadir from Jabir ibn Abdullah that a Bedouin took an oath of allegiance in Islam with the Messenger of Allah ﷺ. A fever befell the Bedouin at Madina. He came to the Messenger of Allah, and said, "Messenger of Allah, release me from my pledge." The Messenger of Allah ﷺ refused. Then he came to him again and said, "Release me from my pledge." The Messenger of Allah may Allah bless him and grant him peace, refused. Then he came again and said, "Release me from my pledge." He refused. Then he came again and said, "Release me from my pledge." He refused. The Bedouin left and the Messenger of Allah ﷺ said, "Madina is like the blacksmith's furnace. It removes the impurities and purifies the good."  

أَنَّ أَعْرَابِيًّا بَايَعَ رَسُولَ اللَّهِ ﷺ عَلَى الإِسْلاَمِ فَأَصَابَ الأَعْرَابِيَّ وَعْكٌ بِالْمَدِينَةِ فَأَتَى رَسُولَ اللَّهِ ﷺ فَقَالَ يَا رَسُولَ اللَّهِ أَقِلْنِي بَيْعَتِي فَأَبَى رَسُولُ اللَّهِ ﷺ ثُمَّ جَاءَهُ فَقَالَ أَقِلْنِي بَيْعَتِي فَأَبَى ثُمَّ جَاءَهُ فَقَالَ أَقِلْنِي بَيْعَتِي فَأَبَى فَخَرَجَ الأَعْرَابِيُّ فَقَالَ رَسُولُ اللَّهِ ﷺ إِنَّمَا الْمَدِينَةُ كَالْكِيرِ تَنْفِي خَبَثَهَا وَيَنْصَعُ طِيبُهَا  

[Machine] An Arab came to the Messenger of Allah ﷺ and said, "Give me your pledge of allegiance on Islam." So he gave him his pledge of allegiance on Islam. Then, on the next day, the Arab came while in a state of distress and said, "O Messenger of Allah, let me go." But he refused. Then, on the following day, the Arab came again while in a state of distress and said, "Let me go." But he refused. When he left, the Messenger of Allah ﷺ said, "The city (Medina) is like a furnace, it expels its impurities and keeps its good."  

جَاءَ أَعْرَابِيٌّ إِلَى رَسُولِ اللهِ ﷺ فَقَالَ بَايِعْنِي عَلَى الْإِسْلَامِ فَبَايَعَهُ عَلَى الْإِسْلَامِ ثُمَّ جَاءَ مِنَ الْغَدِ مَحْمُومًا فَقَالَ يَا رَسُولَ اللهِ أَقِلْنِي فَأَبَى ثُمَّ جَاءَ مِنَ الْغَدِ مَحْمُومًا فَقَالَ أَقِلْنِي فَأَبَى فَلَمَّا وَلَّى قَالَ الْمَدِينَةُ كَالْكِيرِ تَنْفِي خَبَثَهَا وَيَنْصَعُ طَيِّبَهَا  

[Machine] I heard Jabir ibn Abdullah say, "An Arab came to the Prophet ﷺ and pledged allegiance to him on Islam. He fell ill, so he came to the Prophet ﷺ and said, 'Release me from my pledge.' But the Prophet ﷺ refused. He came to him again and said, 'Release me from my pledge.' But the Prophet ﷺ refused. They asked about him and they were told that he had left. So the Messenger of Allah ﷺ said, 'Medina is like a furnace that removes its impurities and purifies its good.'"  

سَمِعْتُ جَابِرَ بْنَ عَبْدِ اللهِ يَقُولُ جَاءَ أَعْرَابِيٌّ إِلَى النَّبِيِّ ﷺ فَبَايَعَهُ عَلَى الْإِسْلَامِ فَوُعِكَ فَأَتَى النَّبِيَّ ﷺ فَقَالَ أَقِلْنِي فَأَبَى ثُمَّ أَتَاهُ فَقَالَ أَقِلْنِي فَأَبَى فَسَأَلَ عَنْهُ فَقَالُوا خَرَجَ فَقَالَ رَسُولُ اللهِ ﷺ إِنَّ الْمَدِينَةَ كَالْكِيرِ تَنْفِي خَبَثَهَا وَتَنْصَعُ طَيِّبَهَا  

A bedouin came to the Prophet ﷺ and gave a pledge of allegiance for embracing Islam. The next day he came with fever and said (to the Prophet ﷺ ), "Please cancel my pledge (of embracing Islam and of emigrating to Medina)." The Prophet ﷺ 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." (Using translation from Bukhārī 1883)   

جَاءَ رَجُلٌ إِلَى النَّبِيِّ ﷺ فَبَايَعَهُ عَلَى الْإِسْلَامِ فَجَاءَ مِنَ الْغَدِ مَحْمُومًا فَقَالَ أَقِلْنِي ثَلَاثَ مَرَّاتٍ فَقَالَ رَسُولُ اللهِ ﷺ «الْمَدِينَةُ كَالْكِيرِ تَنْفِي خَبَثَهَا وَيَنْصَعُ طِيبُهَا»  

" جَاءَ أَعْرَابِىٌّ إِلَى النَّبِىِّ ﷺ فَبَايَعَهُ عَلَى الإِسْلاَمِ، فَجَاءَ مِنَ الْغَدِ مَحْمُومًا فَقَالَ: يَارَسُولَ الله أَقِلْنِى، فَأَبِى النَّبِىُّ ﷺ فَجَاءَهُ ثَلاَثَةَ أَيَّامٍ كُلَّ ذَلِكَ يَقُولُ: يَارَسُولَ الله! أَقِلْنِى بَيْعَتِى، فَأبَى النَّبِىُّ ﷺ فَلَمَّا وَلَّى قَالَ: النَّبِىُّ ﷺ : إِنَّ الْمَدِينَةَ كَالْكِيرِ تَنْفِى خَبَثَهَا وَتَنْصَعُ (*) طَيِّبَهَا ".