Muhammad bin Jubayr bin Mut'im narrates from his father (Sayyiduna Jubayr bin Mut'im, may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said about the captives of Badr: "If Mut'im bin Adi were alive and spoke to me about these foul people, I would release them for his sake."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب السير / 18033