As the error was finished because of the god Indra, he grants Hanuman a wish that his human body could well be as potent as Indra's Vajra, and that his Vajra also can not harm him. Along with Indra other gods have also granted him needs: the God Agni granted https://stayindirectory.com/listings13336292/the-fact-about-hanuman-that-no-one-is-suggesting