It is narrated from Sayyiduna Abu Tha'labah (may Allah be pleased with him); he said: I asked the Messenger of Allah (peace and blessings be upon him): We need the vessels of the polytheists on our journeys; we cook in them and drink from them. He (peace and blessings be upon him) said: "Wash them with water, then cook in them and drink."
Hadith Referenceالمعجم الكبير للطبراني / باب اللام ألف / 18801