לֹא־תָח֥וֹס עֵֽינְךָ֖ עָלָ֑יו וּבִֽעַרְתָּ֧ דַֽם־הַנָּקִ֛י מִיִּשְׂרָאֵ֖ל וְט֥וֹב לָֽךְ׃ (ס)
Não pouparás os teus olhos dele, e removerás de Yisra'el o sangue inocente, e será bom para ti.
Mishneh Torah, Negative Mitzvot
Not to spare a pursuer, but he is to be slain before he reaches the pursued and slays the latter, or uncovers his nakedness, as it is said, “…. then, thou shalt cut off her hand; thine eye shall not pity her” (Deut. 25:12).