I can't tell if the source for Denzinger number 411 is the same letter, "Ex parte tua", listed for number 409. INNOCENT III 1198-1216
Denzinger 411
https://patristica.net/denzinger/#n400The Dissolubility of Valid Marriage by Religious Profession *
[From the letter "Ex parte tua" to Andrew, the
Archbishop of Lyons, Jan. 12, 1206]
409 [. . .]
The Effect of Baptism (and the Character) *
410 [. . .]
411 This is contrary to the Christian religion, that anyone always unwilling and interiorly objecting be compelled to receive and to observe Christianity. On this account some absurdly do not distinguish between unwilling and unwilling, and forced and forced, because
he who is violently forced by terrors and punishments, and, lest he incur harm, receives the sacrament of baptism, such a one also as he who under pretense approaches baptism, receives the impressed sign of Christianity, and he himself, just as he willed conditionally although not absolutely, must be forced to the observance of Christian Faith. . . . But he who never consents, but inwardly contradicts, receives neither the matter nor the sign of the sacrament, because to contradict expressly is more than not to agree. . . . The sleeping, moreover, and the weak-minded, if before they incurred weak-mindedness, or before they went to sleep persisted in contradiction, because in these the idea of contradiction is understood to endure, although they have been so immersed, they do not receive the sign of the sacrament; not so, however, if they had first lived as catechumens and had the intention of being baptized; therefore, the Church has been accustomed to baptize such in a time of necessity.
Thus, then the sacramental operation impresses the sign, when it does not meet the resisting obstacle of a contrary will.