As the error was completed through the god Indra, he grants Hanuman a want that his overall body will be as solid as Indra's Vajra, and that his Vajra might also not harm him. As well as Indra other gods have also granted him wishes: the God Agni granted Hanuman https://www.diigo.com/item/note/avyq4/pmbx?k=028c0df57b08a44314376fee4ca19613