Umayyah bin Safwan bin Umayyah narrates from his father (Sayyiduna Safwan bin Umayyah (may Allah be pleased with him)) that the Prophet (peace and blessings be upon him) borrowed coats of mail from him on the day of Hunayn. He (Safwan (may Allah be pleased with him)) said: "By force, O Muhammad?" He (peace and blessings be upon him) said: "No, rather as a loan; we will return them."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب العارية / 11478