Rashi on Leviticus 20:4/רש"י על ויקרא כ׳:ד׳

1‎ואם העלם יעלימו AND IF [THE PEOPLE OF THE LAND] DO ANY WAYS HIDE THEIR EYES [FROM THE MAN] — If they hide their eyes in one thing they will in the end hide their eyes also in many other matters (Sifra, Kedoshim, Section 4 9); if the Small Sanhedrin (a judicial court of twenty-three) hide their eyes, in the end the Great Sanhedrin (the Supreme Court of seventy-one) will also hide their eyes (Sifra, Kedoshim, Section 4 11).