When the two were young adults, Mufasa's brother returned to Pride Rock after a solo patrol in the Outlands. He informed Mufasa of his victory over a rogue lion who had attempted to take over the kingdom. In response, Mufasa playfully nicknamed him "Scar" after the facial wound he had received from the incident, which embittered him and made him believe that Mufasa did not deserve to be king.[1]