“Monks, I do not see a single thing that prevents ill will from arising like loving kindness. Also, I do not see a single thing, when ill will has arisen, that causes it to be abandoned, like loving kindness. When you attend wisely on the thought of loving kindness, ill will does not arise, or, if it has already arisen, it’s removed completely.”
Read this translation of Aṅguttara Nikāya 1.11-1.20: Removing Completely the Hindrances by Ven. Kiribathgoda Gnananda Thero on SuttaFriends.org. Or read a different translation on SuttaCentral.net. Or listen on PaliAudio.com or SC-Voice.net. Or explore the Pali on DigitalPaliReader.online.