One who performs melachah on the night after Yom Kippur will never see benefit: Pesachim 50b
Performing acts which are normally permitted on Yom Kippur, to prepare for Shabbat: Shabbat 113a
Allowing one to perform a rabbinically prohibited act, to prepare an item for immediate use: Shabbat 114b
Breaking a rabbinic prohibition to announce that another rabbinic prohibition is permitted: Shabbat 114b
The commandments prohibiting melachah on Yom Kippur which is also Shabbat: Shabbat 114b
The punishment for violation: Megillah 7b Lashes for performing melachah on Yom Kippur: Makkot 13a, 23b
The penalty of kareit [Divine excommunication] or bringing a korban chatat [sin offering] for this sin: Keritot 2a
Penalty for performing melachah during "bein hashemashot", as Shabbat begins/ends, or as Yom Kippur begins/ends, so that only part occurs on Shabbat itself: Keritot 19a, 19b
Specific Forms of Work
Use of [non-life-saving] Medication; allowing it via the "Hoil" Principle: Shabbat 111a
Baking the Lechem haPanim [showbread] of Shabbat on Yom Kippur: Pesachim 47a Burning the fats/limbs of Shabbat's korban tamid that night, if that day was Shabbat and that night is Yom Kippur: Shabbat 113a; Yoma 46a; Succah 54b
Going to the Ritual Bath, for an immersion which is a Mitzvah: Shabbat 111a
Allowing chopping up vegetables and other vegetable preparation on Yom Kippur afternoon: Shabbat 114b, 115a
Allowing chopping up vegetables and other vegetable preparation on Yom Kippur afternoon where it could be used immediately after Yom Kippur: Shabbat 114b
Allowing chopping up vegetables and other vegetable preparation on Yom Kippur afternoon, if it is Shabbat: Shabbat 114b-115a Transporting items from one area to another: Yoma 66b; Keritot 14a
The Travel-Border outside the Town: Yoma 66b; Keritot 14a
