大方便佛報恩經 3.66

3.66

佛告阿難：「爾時，三藏比丘以一惡言訶罵上座，五百身中，常作狗身。」一切大眾聞佛說法，皆驚戰悚，俱發聲言：「怪哉！怪哉！世間毒禍莫先於口。」

The Buddha told Ānanda: “At that time, because of a single harsh word rebuking an elder (sthavira), for five hundred lifetimes the Tripiṭaka bhikṣu constantly took the body of a dog.” When the entire great assembly heard the Buddha preach the Dharma, they were all astonished and trembled with fear, together crying out: “How strange! How strange! In the world, no poisonous misfortune surpasses the mouth!”