Sahih al-Bukhari 4888
Book 65: Prophetic Commentary on the Qur'an (Tafseer of the Prophet (pbuh)) · Narrated by `Umar
Arabic
حَدَّثَنَا أَحْمَدُ بْنُ يُونُسَ، حَدَّثَنَا أَبُو بَكْرٍ، عَنْ حُصَيْنٍ، عَنْ عَمْرِو بْنِ مَيْمُونٍ، قَالَ قَالَ عُمَرُ رضى الله عنه أُوصِي الْخَلِيفَةَ بِالْمُهَاجِرِينَ الأَوَّلِينَ أَنْ يَعْرِفَ لَهُمْ حَقَّهُمْ، وَأُوصِي الْخَلِيفَةَ بِالأَنْصَارِ الَّذِينَ تَبَوَّءُوا الدَّارَ وَالإِيمَانَ مِنْ قَبْلِ أَنْ يُهَاجِرَ النَّبِيُّ صلى الله عليه وسلم أَنْ يَقْبَلَ مِنْ مُحْسِنِهِمْ وَيَعْفُوَ عَنْ مُسِيئِهِمْ.
English translation
Narrated `Umar:I recommend that my successor should take care of and secure the rights of the early emigrants; and I also advise my successor to be kind to the Ansar who had homes (in Medina) and had adopted the Faith, before the Prophet (ﷺ) migrated to them, and to accept the good from their good ones and excuse their wrong doers
Reference: Sahih al-Bukhari 4888, Book of Prophetic Commentary on the Qur'an (Tafseer of the Prophet (pbuh)). English translation by Dr. Muhammad Muhsin Khan.