605, it is stated that special treatment of a child is permissible due to a need, a disability, blindness, his or her being from a large family, being engaged in studies, or something of the sort, as it is also permitted to withhold from a child who would spend what he is given on sinful or wicked things.) The child has the right to be not forced by its step parents or its birth parents. Children have the right to education. Parents are recommended to provide adequately for children in inheritance. A Hadith says, “It is better for parents to leave their children well provided (financially) than to leave them in poverty”. Parents demonstrating an unearned preference for one child over the other is considered an act of injustice, as it could lead to an atmosphere of hatred, anger and dismay amongst the children in a household. But if a parent granted one of his children financial help to fulfill a necessity, such as a medical treatment coverage, then such a grant would not be categorized an act of injustice and unfairness. Such a gift will fall under the right to spend in the essential needs of the children, which is a requirement that a parent must fulfill. A father is responsible for teaching his children according to Islam as follows: Basic information about belief and worship Basic information about high moral qualities Information on what to be careful about in relations with other people Vocational education Muhammad said: "Every one of you is a protector and guardian and responsible for your wards and things under your care and a man is a guardian of his family members, and is accountable for those placed under his charge." (Bukhari and Muslim) Marrying children when they are old enough to get married One of the rights that children have over their parents is to be provided with marriage when they are old enough without delaying it. Both the Quran and Muhammed order that young people and orphans be married when they are old enough. Rights of parents The first and foremost right of the parents is to be treated with goodness and kindness by their children. A hadith records that Muhammad defined a "greatest of great sins" as being undutiful to one's parents. Is it erroneously believed that "obedience" to parents is obligatory, however, this is not supported by any primary sources.