Praise be to Allah.
We put the following question to Shaykh Muhammad ibn Saalih al-‘Uthaymeen:
I became Muslim recently and I am wondering about the financial relationship between me and my father. Do I have to give him money because of the hadeeth, “You and your wealth belong to your father”?
He (may Allaah preserve him) replied as follows:
Does he mean spending on him or what?
-He says that he asks him for different things, it is not just the matter of spending on him, it is more than that.
Answer: he is not obliged to do more than spend on him (i.e., cover his living expenses); as for charity, that is not a problem (i.e., if he wants to give him more as an act of charity, that is fine).
And Allaah knows best.