Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) said: The Muslims captured one of the leading men of the polytheists and killed him. The polytheists asked them to sell him (his body), and the Prophet (peace and blessings be upon him) forbade "selling the carcass of a polytheist".
Hadith Referenceالسنن الكبرى للبيهقي / كتاب السير / 18355