Giving one third of the inheritance to a trader in return for a share in the profits and sacrificing their profits

Q: Four years ago, Nasrah bint Ibrahim Abu Salih passed away in Riyadh. She used to live in Jalajil. She left behind two daughters, a half-sister, and two nephews. Four years after her death, one of her daughters went to her house in Jalajil, where she found 1,010 Riyals in a box. We do not know whether the money was at her house when she died or it was a trust which someone had recently returned. Is Zakah due on this money? Does her half-sister or her nephews inherit from her? I was made a trustee for one third of her estate, (Part No. 16; Page No. 363) should we slaughter Ud-hiyah (sacrificial animal offered by non-pilgrims) from this one third? It should be taken into consideration that the one-third does not exceed 300 Riyals. Please advise.

A: Firstly: The property should be divided as follows: Two thirds for her two daughters, the rest for her half-sister, and nothing for her nephews. This should be done after repaying any debt and carrying out her will. Secondly: Zakah is due on the money which the daughter found in her mother's house. The daughters and the half-sister should pay Zakah on the four years after the mother's death whether the money was at her house when she died, or if it was a trust someone returned. Thirdly: The three hundred Riyals (i.e. one third) should be invested with a trader on a profit-sharing basis. The Ud-hiyah is to be offered from this profit and by this it will continue to be slaughtered from the profit, instead of slaughtering from the third of the estate which would run out. May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.