כִּ֣י תִפְגַּ֞ע שׁ֧וֹר אֹֽיִבְךָ֛ א֥וֹ חֲמֹר֖וֹ תֹּעֶ֑ה הָשֵׁ֥ב תְּשִׁיבֶ֖נּוּ לֽוֹ׃ (ס)
Orchot Tzadikim
As for him who speaks the truth, there is no quality like it. Therefore, "The beginning of thy word is truth" (Ps. 119:160). And it is said, "Keep thee far from a false matter" (Ex. 23:7).