Sefer Chasidim Siman 649
Can copy this into an AI, or connect the whole library to your assistant. For deeper learning, you can directly use the original seforim, sites, and apps.
מעשה בחסיד אחד שאמרו לו במה הארכת ימים אמר לפי שמעולם לא קללני אדם או חרפני שעניתיו אלא הייתי סובלו ומוחל לכל שציערני:
Medieval Jewish mysticism, translated by Sholom Alchanan Singer. Northbrook, Ill. Whitehall Co., 1971
There was an incident where they asked a pious man: "How did you merit longevity?" And he replied: "Never did I return insult to a person who cursed or embarrassed me, instead I would be patient with him and forgive anyone who would cause me distress"