לֹֽא־יִהְיֶ֥ה לְךָ֛ בְּכִֽיסְךָ֖ אֶ֣בֶן וָאָ֑בֶן גְּדוֹלָ֖ה וּקְטַנָּֽה׃ (ס)
Thou shalt not have in thy bag diverse weights, a great and a small.
Targum Jonathan on Deuteronomy
You shall not have in your bag weights that are deceitful; great weights to buy with, and less weights to sell with.