Rufinus:  Huius questionis seminarium hic magister interserit, sed solutionem eius in xvi. causam suspendit (ed. Singer, 335). 

Rufinus: The Master inserted the arguments of this question here but gives the solution in Case 16.

Gratian C.16 q.3 d.p.c.15:  St Gall 673, fol. 136:

Potest quod aliter intelligi prescriptio illa longi temporis qua negat Gelasius ecclesiarum statum posse mutari. 

Prescription of a long time can be otherwise understood from that which Pope Gelasius denies when he says that the state of the church cannot be changed.

Köln, Erzbischöfliche Diözesan- und Dombibliothek 129, fol.  185r

Köln, Erzbischöfliche Diözesan- und Dombibliothek 129, fol.  186r