Whatever is Halaal cannot be declared Haraam and whatever is Haram cannot be declared Halal. Therefore, Halaal meat bought with Haraam (impure) money is also Haraam.
Nabi (Sallallaahu Alayhi Wasallam) said, ‘A person who was nourished with Haraam will not enter Jannah.’ Secondly, in the case of the children, the parents are responsible to sustain them with Halal and pure earnings. Children will not be responsible.
and Allah Ta’ala Knows Best
Mufti Ebrahim Desai