As the error was performed from the god Indra, he grants Hanuman a want that his human body can be as potent as Indra's Vajra, Which his Vajra might also not harm him. Together with Indra other gods have also granted him needs: the God Agni granted Hanuman a want https://davidt974tyc9.blogaritma.com/31156666/the-2-minute-rule-for-bajrang-baan