As The error was done from the god Indra, he grants Hanuman a would like that his entire body can be as robust as Indra's Vajra, and that his Vajra may not harm him. In conjunction with Indra other gods have also granted him wishes: the God Agni granted Hanuman https://adelaidehindutemple.school.blog/2024/11/16/exploring-devotional-landmarks-sacred-spaces-in-adelaide-and-beyond/