As the error was carried out with the god Indra, he grants Hanuman a wish that his human body could be as strong as Indra's Vajra, and that his Vajra could also not harm him. Along with Indra other gods have also granted him wishes: the God Agni granted Hanuman https://hanumanmandirsouthaustralia.sport.blog/2024/07/12/the-universal-appeal-of-lord-shanidev/