List of Oppressions: Yoma 73b
The passage providing the biblical warning against breaking these rules: Yoma 81a, 81b
Comparing eating/drinking on the 9th of Av to eating/drinking on Yom Kippur: Taanit 30b
Source for having 5 Oppressions: Yoma 76a
Source of "Ingestion" Oppressions: Yoma 74b
Understanding the biblical term "Shabbaton" to refer to non-ingestion oppressions: Rashi Yoma 74a
Adding extra oppressions: Yoma 74b Educating children in the oppressions of Yom Kippur: Yoma 82a
Observing the oppressions during the period of sunset: Pesachim 54b
Keeping an extra day of Yom Kippur to allow for potential calendar error: Pesachim 54b
Women's requirement in this Mitzvah: Succah 28a-b
Exemptions
Determining Status of a Sick Person: Yoma 82a
Self-Diagnosis: Yoma 83a
Personal Diagnosis against the Doctor's: Yoma 83a Pregnancy: Yoma 78b, Pesachim 54b Nursing: Pesachim 54b Women after Birthing
Minors and Infants: Yoma 78b