The Messenger of Allah ﷺ said to me: When my messengers come to you, give them thirty coats of mail, and thirty camels. I asked: Messenger of Allah, is it a loan with a guarantee of its return, or a loan to be paid back? He replied : It is a loan to be paid back.

لِي رَسُولُ اللَّهِ ﷺ إِذَا أَتَتْكَ رُسُلِي فَأَعْطِهِمْ ثَلاَثِينَ دِرْعًا وَثَلاَثِينَ بَعِيرًا قَالَ فَقُلْتُ يَا رَسُولَ اللَّهِ أَعَارِيَةً مَضْمُونَةً أَوْ عَارِيَةً مُؤَدَّاةً قَالَ بَلْ مُؤَدَّاةً