Rashi on Deuteronomy 1:18/רש"י על דברים א׳:י״ח

1את כל הדברים אשר תעשון [AND I COMMANDED YOU …] ALL THE THINGS THAT YE SHOULD DO — These are the ten things that constitute the difference between civil cases and capital cases (Sifrei Devarim 18:1; cf. Sanhedrin 32a).