Narrated Ya'la bin Umaiya (RA): Allah's Messenger ( صلی اللہ علیہ وسلم ) said to me, "When my messengers come to you, give them thirty coats of armor." I asked, "O Allah's Messenger, is it a loan with a guarantee (of its return), or a borrowed object that must be returned?" He replied, "No, it is a borrowed object that must be returned." [Reported by Ahmad, Abu Dawud and an-Nasa'i. Ibn Hibban graded it Sahih (authentic)] .