The Prophet of Allah, sallallaahu ‘alayhi wa sallam, ordered them to be just in giving gifts and allowances to their children

An-Nu`maan ibn Basheer (a Companion) narrated that his mother,`Amrah bint Rawaahah (a woman Companion) asked his father for some money to give her son, but he procrastinated for a year, then gave it to her. She said: “I am not pleased until you take the Messenger of Allah as a witness to what you have given my son.” An-Nu`maan said: “So he took my hand to the Prophet of Allah, sallallaahu ‘alayhi wa sallam, and I was a boy at the time, and said: ‘O Messenger of Allah, the mother of this boy, the daughter of Rawaahah, would be pleased if you were to witness and testify to what I have given her son.’” The Messenger of Allah, sallallaahu ‘alayhi wa sallam, said: “O Basheer, do you have any other children besides this child?” He said: “Yes.” The Messenger of Allah, sallallaahu ‘alayhi wa sallam, then asked: “Have you given all of them the same as you have given this son of yours?” He said: “No.” Thereupon, the Prophet of Allah, sallallaahu ‘alayhi wa sallam, said: “Then do not ask me to testify, as I will not witness to oppression.”

“Fear Allah, and be just between all of your children.” An-Nu`maan said: “So my father went back and took the money back.”

“They have a right on you, and that is that you are just between them, just as you have a right on them, and that is that they treat you well.”