Rashi on Deuteronomy 31:11/רש"י על דברים ל״א:י״א

1תקרא את התורה הזאת [WHEN ALL ISRAEL IS COME TO APPEAR BEFORE THE LORD …] THOU SHALT READ THIS LAW [BEFORE ALL ISRAEL] — The king read from the beginning of the section “These are the words” (Deuteronomy 1:1), — as is set forth in Treatise Sotah 41a — upon a wooden platform that was erected in the forecourt.