Sahih Muslim, 3320

Amir b. Sa'd reported that Sa'd rode to his castle in al-'Aqiq and found a slave cutting down the trees, or beating off their leaves, so he stripped him off his belongings. When Sa'd returned, there came to him the masters of the slave and negotiated with him asking him to return to their slave or to them what he had taken from their slave, whereupon he said:God forbid that I should return anything which Allah's Messenger (ﷺ) has given me as spoil, and refused to return anything to them

Rapporté par ‘Amir b. Sa‘d : Sa‘d se rendit à son château à al-‘Aqiq et trouva un esclave en train de couper des arbres ou d’en arracher les feuilles. Il lui retira alors ses biens. Quand Sa‘d revint, les maîtres de l’esclave vinrent le voir pour négocier et lui demander de rendre à leur esclave ou à eux ce qu’il avait pris. Il répondit : « Qu’Allah m’en préserve de rendre ce que le Messager d’Allah ﷺ m’a donné comme butin. » Il refusa donc de leur rendre quoi que ce soit