A Topic of Moral Theology
Duties of the Confessor as Regards Cooperation
Duties of the Confessor as Regards Cooperation, as treated in McHugh–Callan (Art. 9. The Sins Against Beneficence).
In the index as Cooperation in Sin
In the manuals
Moral Theology: A Complete Course (McHugh & Callan)
Vol. I, Pt. II, Q. I, Art. 9. The Sins Against B…, Duties of the Confessor as Regards Cooperation, nn. 1545 & 1546 (2 passages — hover a number to read it)
Treated under the broader heading Co-operation in Another's Sin — Slater, Manual of Moral Theology · Wouters, Manual of Moral Theology · Bucceroni, Cases of Conscience · Bucceroni, Institutions of Moral Theology · Gury-Ballerini, Compendium of Moral Theology (8th ed., 1884) · Tanquerey · Koch–Preuss · Vermeersch, Theologia Moralis · Prümmer, Manuale Theologiae Moralis · Marc, Institutiones Morales · Konings, Theologia Moralis · Merkelbach, Summa Theologiae Moralis · Sabetti-Barrett, Compendium of Moral Theology · Slater, Cases I and 1 more — these works do not divide the matter as finely as we do here, so their treatment stands one heading up (ed.)