Sahih al-Bukhari 3139
Sahih al-Bukhari · Book 57: One-fifth of Booty to the Cause of Allah (Khumus) · The free emancipation of the captives by the Prophet saws without taking out the Khumus from the booty
Narrated Jubair bin Mut`im:
حَدَّثَنَا إِسْحَاقُ بْنُ مَنْصُورٍ ، أَخْبَرَنَا عَبْدُ الرَّزَّاقِ ، أَخْبَرَنَا مَعْمَرٌ ، عَنِ الزُّهْرِيِّ ، عَنْ مُحَمَّدِ بْنِ جُبَيْرٍ ، عَنْ أَبِيهِ ـ رضى الله عنه ـ أَنَّ النَّبِيَّ صلى الله عليه وسلم قَالَ فِي أُسَارَى بَدْرٍ " لَوْ كَانَ الْمُطْعِمُ بْنُ عَدِيٍّ حَيًّا، ثُمَّ كَلَّمَنِي فِي هَؤُلاَءِ النَّتْنَى، لَتَرَكْتُهُمْ لَهُ " .
The Prophet (ﷺ) talked about war prisoners of Badr saying, "Had Al-Mut`im bin Adi been alive and interceded with me for these mean people, I would have freed them for his sake."