As the mistake was finished via the god Indra, he grants Hanuman a desire that his entire body can be as strong as Indra's Vajra, and that his Vajra also can not hurt him. As well as Indra other gods have also granted him needs: the God Agni granted Hanuman https://gircowgaushalaadelaide.blogspot.com/2024/07/the-power-and-influence-of-lord-shanidev.html