I have some doubt regarding Ghusl e Janabat as I know wudu is haraam After Ghusl. I want to know what If I have to go washroom and then how would I recite namaz ? Like do I need to do wudhu or else?

If you pray after ghusl then wudhu is not wajib but if after ghusl and before prayer you visited toilet then wudhu is wajib