Sefer Chasidim Siman 109
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.
האומר לחבירו תושיט לי ספר יקחנו בימינו ולא בשמאלו לפי שהתורה נתנה בימין שנא' (דברים לג ב) מימינו אש דת למו:
Medieval Jewish mysticism, translated by Sholom Alchanan Singer. Northbrook, Ill. Whitehall Co., 1971
He who says to his friend, “Hand me a book” let him take it in his right hand and not in his left for the Torah was given with the right hand, as it is said (Deut. 33:2), “At His right hand was a fiery law unto them.” ¹
footnotes: ¹ Sopherim 3:10.