Giving More Share of Inheritance due to A child’s devotion
For example, there is a family with an illustration as follows:
Mr. Danang has three sons, and two daughters. They all have married and live separately, but the youngest son Adi who still live at his parent house and help Mr. Danang to work on his rice field.
Is it alright for Mr. Danang to give more share of his inheritance to Adi, as a reward for his hard work in helping his parent on the rice field?