Sifrei_mitzvot for Deuteronomy 19:16

כִּֽי־יָק֥וּם עֵד־חָמָ֖ס בְּאִ֑ישׁ לַעֲנ֥וֹת בּ֖וֹ סָרָֽה׃

If an unrighteous witness rise up against any man to bear perverted witness against him;