Penalty for an onein who works in the Beit haMikdash: Zevachim 23b-24a
Distinguishing between have an onein bring personal or communal korbanot: Zevachim 16b-17a
For a kohen gadol to bring personal or communal korbanot while in this state of mourning: Moed Katan 14b; Zevachim 16a-b, 16b-17a
For a kohen gadol to eat from korbanot while in this state of mourning: Moed Katan 14b; Zevachim 16a-b
For a kohen who is an onein to bring the korbanot of a mechusar kapparah: Shabbat 132a
What happens if an onein performs kabbalat hadam: Zevachim 15b, 15b-16a
Whether an onein may perform services on a bamah: Zevachim 16a
Whether an onein may perform the service of the parah adumah: Zevachim 17b