As The error was completed by the god Indra, he grants Hanuman a want that his system could be as solid as Indra's Vajra, Which his Vajra might also not hurt him. In addition to Indra other gods have also granted him wishes: the God Agni granted Hanuman a wish https://hindutemplesouthaustralia.politics.blog/2024/02/22/spiritual-journey-puja-at-hanuman-ji-mandir-south-australia/