Answer:
(Fatwa: 444/397/D=1433)
It is not lawful for parents to give their zakah to their children, though you (their son) are paying the zakah of your parents from your own pocket. However, you can give your zakah to your poor brother, sister, bahnoi (husband of your sister), niece (bhatija and bhanja).
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband
