The Council of Nicaea
If any who have lapsed have been ordained through the ignorance, or even with the previous knowledge of the ordainers, this shall not prejudice the canon of the Church; for when they are discovered they shall be deposed.
Source details
A.D. 325 · Canon 10 (325)
Checked word-for-word against Nicene and Post-Nicene Fathers, Series 2, Vol. 14 · 2026-07-26