As the error was performed because of the god Indra, he grants Hanuman a desire that his entire body can be as potent as Indra's Vajra, Which his Vajra may also not damage him. In conjunction with Indra other gods have also granted him needs: the God Agni granted Hanuman https://vashikaran33108.dailyhitblog.com/42456045/hanuman-an-overview