5 grave deeds

Five grave deeds (leading to rebirth in a hell):

1. One who has killed his/her mother

2. One who has killed his/her father

3. One who has killed an Arahant

4. One who, with a corrupted mind, has caused the blood of a Tathagata to flow

5. One who has caused a split in the Sangha

(from Anguttara Nikaya 5.129)

References

• The Complete Book of Buddha's Lists -- Explained. David N. Snyder, Ph.D., 2006.
• http://www.thedhamma.com/