Pratimoksha of the Dharmaguptakas 1.41

1.41

「若比丘！共女人獨在屏處覆處障處，可作婬處坐，說非法語。有住信優婆夷，於三法中一一法說：若波羅夷、若僧伽婆尸沙、若波逸提；是坐比丘自言：『我犯是罪。』於三法中應一一治：若波羅夷、若僧伽婆尸沙、若波逸提，如住信優婆夷所說，應如法治是比丘，是名不定法。

If a monk (monk) occupy a screened and sheltered place, in common with a woman, and sit in a spot fit for the commission of sin, and at the same time indulge in licentious (unlawful) conversation with her if, for example, she be a faithful lay woman (upāsika) and they converse together on matters relating to the three laws, viz., pārājika, saṅghādisesa, pācittiya; and if this monk, sitting in the manner mentioned, say of his own accord: “I have broken these laws, and am therefore liable to the several punishments attached to the transgression, whether entire exclusion, or suspension and penance, or public confession,” then according to what this faithful laywoman shall report, respecting the crimes which the monk has acknowledged, such shall be his punishment.