Rendering trusts back

Q 1: I have a married sister who is about 25 years old. She had an accident because of a water sprinkler. When I visited her in the hospital, she told me that she owed 600 Riyals to venders in the market. Before the accident, she tried to give them their money but could not find them in their usual place. I took the money from her and told her that her debt is now mine. I have a debt and her mother provided for some sheep. It is important to mention that I receive a monthly salary of 3,300 Riyals. Please tell me what I should do with this money. May Allah reward you the best!

A: You should pay this sum of money to the poor with the intention that this is Sadaqah (voluntary charity) on behalf of its owners, whom you cannot find so as to give them their money. It is not permissible for you to take anything from it because it is in your trust. May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.