1. from the solution key or absolution.
XI. Theil, Pred. am Ostertage; eine schöne Predigt von Empfahung des hl. Sacraments, § 24 ff, von der Absolution.
Here you can also read Luther's writings, which he wrote against the papists.
The author wrote about the compulsion of conscience during and with absolution and in general against the whole papal indulgence stuff. See the dogmat.polem. Schriften gegen die Papisten, Sect. I. & Sect. II.
2. from the binding key or spell.
This can be read in the dogmatic polemical writings against the papists, Sect. II.
Sermon on the power of the ban. 1518.
First Sermon on the Power of the Ban. 1518.
Sermon from the ban.