Sahih al-Bukhari 2537
Sahih al-Bukhari · Book 49: Manumission of Slaves · If the brother or the uncle of somebody was taken as to ransom a Mushrik
Narrated Anas:
حَدَّثَنَا إِسْمَاعِيلُ بْنُ عَبْدِ اللَّهِ ، حَدَّثَنَا إِسْمَاعِيلُ بْنُ إِبْرَاهِيمَ بْنِ عُقْبَةَ ، عَنْ مُوسَى ، عَنِ ابْنِ شِهَابٍ ، قَالَ حَدَّثَنِي أَنَسٌ ـ رضى الله عنه ـ أَنَّ رِجَالاً، مِنَ الأَنْصَارِ اسْتَأْذَنُوا رَسُولَ اللَّهِ صلى الله عليه وسلم فَقَالُوا ائْذَنْ فَلْنَتْرُكْ لاِبْنِ أُخْتِنَا عَبَّاسٍ فِدَاءَهُ، فَقَالَ " لاَ تَدَعُونَ مِنْهُ دِرْهَمًا " .
Some men of the Ansar asked for the permission of Allah's Messenger (ﷺ) and said, "Allow us to give up the ransom from our nephew Al-`Abbas. The Prophet (ﷺ) said (to them), "Do not leave (even) a Dirham (of his ransom).