A father trading with some of his children

Q: Respected Shaykh, there is a father who has seven daughters and seven sons, the eldest of whom is undutiful. The three other oldest sons agreed with their father to open some stores in 1400 A.H. on the condition that half the profit would go to the father and the other half to the three sons. The three sons have managed the businesses successfully, and even two of them left their studies to operate the stores. They have continued to operate these businesses since 1400 A.H. Up to date; however, the father believes it is unfair that the three elder sons enjoy half of the profit while the rest of their siblings get nothing.Is taking that share of profit Haram (prohibited), bearing in mind that the rest of the brothers and sisters are still young while the three elder sons have dedicated themselves to managing these businesses. The father requested that Shaykh `Abdul-`Aziz's advice be sought in this matter. Guide us, may Allah reward you with the best! (Part No. 16; Page No. 241

A: There is nothing wrong if the father agreed with the three elder sons to manage the stores in return for half of the profit, if the case is as you mentioned. This is because the profit they receive is in return for the work they perform, and not a Hibah (gift) that their father specially apportioned for them. May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.