The Roman writers tell us that instead of resenting the proceedings of Justin in the years A.D.

520-522, Kobad made the strange proposal to him about this time that he should adopt Chosroes, in order that that prince might have the aid of the Romans against his countrymen, if his right of succession should be disputed.
It is, no doubt, difficult to believe that such a proposition should have been made; but the circumstantial manner in which Procopius, writing not forty years after, relates the matter, renders it almost impossible for us to reject the story as a pure fabrication.

There must have been some foundation for it.

In the negotiations between Justin and Kobad during the early years of the former, the idea of Rome pledging herself to acknowledge Chosroes as his father's successor must have been brought forward.

The proposal, whatever its exact terms, led however to no result.