A man could think that the good he/she is doing is good but in fact an evil, therefore, all acts should be rational. Allah's decree is legislating rules for each act including parents gift for some of their sons where the parent, driven by will and lust, would prefer one of his/her sons, boy or girl, from others. The result will be grudge and oppression.
This study deals with this issue that is leading to family dispersion and provide the devils with opportunities to dismantle family relations and move the brothers and sisters into enemies.
The study starts with defining gift (nihla) and stating the rules and fuqha different views. After reviewing and discussing all the views, the study summed up with the prohibition of preferring some of the sons. The study concludes with some facts and tales where the legislator rule is defined.