אָר֕וּר מַכֵּ֥ה רֵעֵ֖הוּ בַּסָּ֑תֶר וְאָמַ֥ר כָּל־הָעָ֖ם אָמֵֽן׃ (ס)
"Maudit, qui frappe son prochain dans l’ombre!" Et tout le peuple dira: Amen!
Targum Jonathan on Deuteronomy
Accursed is he who attacketh his neighbour with slander in secret. And all shall answer together, and say, Amen.