Narrated 'Amr bin Ash-Sharid:

While I was standing with Sad bin Abi Waqqas, Al-Miswar bin Makhrama came and put his hand on my shoulder. Meanwhile Abu Rafi', the freed slave of the Prophet came and asked Sad to buy from him the (two) dwellings which were in his house. Sad said, "By Allah I will not buy them." Al-Miswar said, "By Allah, you shall buy them." Sad replied, "By Allah, I will not pay more than four thousand (Dirhams) by installments." Abu Rafi' said, "I have been offered five hundred Dinars (for it) and had I not heard the Prophet saying, 'The neighbor has more right than anyone else because of his nearness, I would not give them to you for four-thousand (Dirhams) while I am offered five-hundred Dinars (one Dinar equals ten Dirhams) for them." So, he sold it to Sad.

حَدَّثَنَا الْمَكِّيُّ بْنُ إِبْرَاهِيمَ، أَخْبَرَنَا ابْنُ جُرَيْجٍ، أَخْبَرَنِي إِبْرَاهِيمُ بْنُ مَيْسَرَةَ، عَنْ عَمْرِو بْنِ الشَّرِيدِ، قَالَ وَقَفْتُ عَلَى سَعْدِ بْنِ أَبِي وَقَّاصٍ، فَجَاءَ الْمِسْوَرُ بْنُ مَخْرَمَةَ فَوَضَعَ يَدَهُ عَلَى إِحْدَى مَنْكِبَىَّ إِذْ جَاءَ أَبُو رَافِعٍ مَوْلَى النَّبِيِّ ﷺ فَقَالَ يَا سَعْدُ ابْتَعْ مِنِّي بَيْتَىَّ فِي دَارِكَ. فَقَالَ سَعْدٌ وَاللَّهِ مَا أَبْتَاعُهُمَا. فَقَالَ الْمِسْوَرُ وَاللَّهِ لَتَبْتَاعَنَّهُمَا. فَقَالَ سَعْدٌ وَاللَّهِ لاَ أَزِيدُكَ عَلَى أَرْبَعَةِ آلاَفٍ، مُنَجَّمَةٍ أَوْ مُقَطَّعَةٍ. قَالَ أَبُو رَافِعٍ لَقَدْ أُعْطِيتُ بِهَا خَمْسَمِائَةِ دِينَارٍ، وَلَوْلاَ أَنِّي سَمِعْتُ النَّبِيَّ ﷺ يَقُولُ " الْجَارُ أَحَقُّ بِسَقَبِهِ ". مَا أَعْطَيْتُكَهَا بِأَرْبَعَةِ آلاَفٍ، وَأَنَا أُعْطَى بِهَا خَمْسَمِائَةِ دِينَارٍ. فَأَعْطَاهَا إِيَّاهُ.