Sayyiduna Tha'labah bin al-Hakam (may Allah be pleased with him), who was from Banu Layth, narrates that he saw the Messenger of Allah (peace and blessings be upon him) pass by some cooking pots containing goat meat which the people had plundered. He (peace and blessings be upon him) gave the order and they were overturned, and he said: "Plunder is not lawful."
Hadith Referenceالمعجم الكبير للطبراني / باب الثاء / 1359