When the Sixteenth Falls on Sabbath the Leftover Burns a Day Later

Another interpretation: What does the verse teach by saying "until morning"? It tells us that the remnant is not burned until the daylight of the sixteenth [of Nisan]. Rabbi Ishmael says: This is not needed, for the verse already says, "No manner of work shall be done in them" (Exodus 12:16), and burning is a form of work. Then why does the verse say "until morning"? Rather, it teaches that if the sixteenth falls on a Sabbath, the remnant is not burned until the daylight of the seventeenth. Rabbi Jonathan says: This too is not needed. By an argument from the lesser to the greater: in a case where the preparation of all food sets aside the festival, still the burning of the remnant does not set aside the festival; in a case where the preparation of some food does not set aside the Sabbath, is it not logical that the burning of the remnant should not set aside the Sabbath? Then why does the verse say "until morning"? Scripture comes to set a boundary for the morning of the morning. Rabbi Isaac says: This is not needed. If leaven, which falls under "it shall not be seen" and "it shall not be found," still its burning does not set aside the festival, and so forth. Then why does the verse say "until morning"? For the matter that we stated.