How can one keep ones self safe from haram earnings of the people one is dependent on? Like children are dependent on parents. Is there any mistake that will render illegitimate upon you even the halal earnings of the parents?
A`udhu billahi min ash-shaytan ir-rajeem
Bismillahi ‘r-Rahmani ‘r-Raheem
If your parents claim that they earn Halal money then you are to take their words and accept it as Halal.
Keep in mind that the concept of “disowning” a child does not exist in Islam. You are your parents’ child whether they agree with you or not and their support to you will always be legitimate.