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يَحْيَى بْنُ يَحْيَى ، قَالَ : قَرَأْتُ عَلَى
مَالِكٍ ، عَنْ
مُحَمَّدِ بْنِ الْمُنْكَدِرِ ، عَنْ
جَابِرِ بْنِ عَبْدِ اللَّهِ : أَنَّ أَعْرَابِيًّا بَايَعَ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ ، فَأَصَابَ الْأَعْرَابِيَّ وَعْكٌ بِالْمَدِينَةِ ، فَأَتَى النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ ، فقَالَ : يَا مُحَمَّدُ ، أَقِلْنِي بَيْعَتِي ، فَأَبَى رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ ، ثُمَّ جَاءَهُ ، فقَالَ : أَقِلْنِي بَيْعَتِي فَأَبَى ، ثُمَّ جَاءَهُ ، فقَالَ : أَقِلْنِي بَيْعَتِي ، فَأَبَى فَخَرَجَ الْأَعْرَابِيُّ ، فقَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ : " إِنَّمَا الْمَدِينَةُ كَالْكِيرِ تَنْفِي خَبَثَهَا ، وَيَنْصَعُ طَيِّبُهَا " .
Jabir bin'Abdullah (RA) reported that a desert Arab swore allegiance to Allah's Messenger (ﷺ) . He suffered from a severe fever in Madinah (and) so he came to Allah's Messenger (ﷺ) saying: Muhammad, cancel my oath of allegiance, but Allah's Messenger (ﷺ) refused it. He again came and said: Cancel my oath of allegiance, but he (the Holy Prophet) refused it. He again came to him and said: Cancel my oath of allegiance, but he refused. The desert Arab, however, went away (cancelling the allegiance himself); thereupon Allah's Messenger (ﷺ) said: Madinah is like a furnace which drives away its impurity and purifies what is good.