these are only names given by yourselves and your fathers. god has not given them any authority. they only follow mere conjecture and the desires of their souls even though guidance has already come to them from their lord.
إن هي إلا أسماء سميتموها أنتم وآباؤكم ما أنزل الله بها من سلطان إن يتبعون إلا الظن وما تهوى الأنفس ولقد جاءهم من ربهم الهدى