Amir bin Sa'd (may Allah have mercy on him) said that Sa'd (may Allah be pleased with him) rode to his residence at al-Aqiq. He found a slave cutting trees, so he seized his belongings. When he returned, the slave's family came to him asking him to return to them what he had taken from their slave. He said: "Ma'adh Allah (Allah forbid) that I should return anything that the Messenger of Allah (peace and blessings be upon him) gave me as spoils!" And he did not return anything to them.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحج / 9972