The burnt offering of each Sabbath on its Sabbath, in addition to the continual burnt offering and its libation.
Torah Temimah: Shabbos 114a
English: It was taught: R. Akiva says, “the burnt offering of each Sabbath on its Sabbath” teaches that Shabbos fats may be offered on Yom Tov; one might think even on Yom Kippur — the verse says “on its Sabbath.”
Scope of delaying fats.
Yom Tov may receive Shabbos fats; Yom Kippur may not.