Note 203 — Chapter VII · DECLINE OF COMPURGATION.
Reading edition
Illi qui ad purgandam alicujus infamiam inducuntur, ad solum tenentur juramento firmare quod veritatem credunt eum dicere qui purgatur.—C. 13, Extra, V. xxxiv. Innocent also endeavored to put an end to the abuse by which ecclesiastics, notoriously guilty, were able to escape the penalty due their crimes, by this easy mode of purgation.—C. 15, eod. loc.
The formula as given about 1240 by St. Ramon de Peñafort is “Nos credimus quod ipse juravit verum, vel, verum esse quod juravit.”—Raymondi Summæ Lib. III. Tit. xxxi. § 5.