Kommentar zu Dewarim 17:13

וכל העם ישמעו AND ALL THE PEOPLE SHALL HEAR [AND FEAR] — From here we derive the law that they wait for him (i.e. defer the execution of a זקן ממרא, an elder who disregards the decision of the Supreme Court, to whom Scripture refers in v. 12 by the words והאיש אשר יעשה בזדון) until the next festival (when all Israel is assembled in Jerusalem) and they put him to death at the season of the festival (Sanhedrin 89a).

וכל העם ישמעו וייראו, ”and all the people shall hear and be in awe,” at a time when all the people are present in Jerusalem, i.e. one waits with the trial until one of the pilgrimage festivals (Sanhedrin 89).

From here it is derived that we wait with him until the festival, etc. You might ask: What is the difference here that Rashi explains, “From here it is derived that we wait with him until the festival etc,” whereas regarding the wayward and rebellious son (later 21:21) Rashi explains, “‘Let all Yisroel hear and be fearful,’ from here [we derive] that there must be a proclamation at the courthouse, etc.,” see there. Re”m discusses this at length and writes in the end: But you might ask that here we derive from “Let all the people hear and fear” that one needs waiting and a proclamation, whereas regarding the wayward and rebellious son they derive from the verse, “Let all Yisroel, etc.,” only that there must be a proclamation without [requiring] waiting? Furthermore, from where do we derive here [the requirement of] waiting? It is written here, “Let all the people see and fear”? It is written “hear and fear,” which indicates only hearing. Research this in the commentaries.