This sound effect can be found on Sound Effects In Stereo Volume 1, which was made by Audio Fidelity. It's the same track as Sound Ideas, LION - ROARING, INTERIOR, ANIMAL, CAT from The International Sound Effects Library from Sound Ideas. A low quality excerpt is found on Shareware Breakthrough Soundworks as ROAR. Links: https://www.youtube.com/watch?v=srDxyXpPJ6Q https://soundeffects.fandom.com/wiki/Audio_Fidelity,_Lions_Roaring#Audio_Samples