To obtain the Codger’s Quarrel side quest in The Legend of Zelda: Tears of the Kingdom, speak with Trissa in Kakariko Village. For this quest, head south of the village following the main path then scale the left mountain. At the top, you’ll find the pair arguing. Speak with them then head inside the ruins and clear out the enemies.
Afterwards, report back to the duo then make your way to Trissa in Kakariko Village. After you speak with her, the quest will complete and you’ll receive an Endura Carrot.