Over at "Beggars all" James Swan put up a post attacking another Catholics statement that Luther believed in the Assumption.
It is clear that Luther believed that Mary was in heaven. But, being true to Sola Scriptura he did not feel that her being in heaven should be an article of faith due to the fact that there was no explicit verse in the Bible one way or the other.
This varies with modern Protestants (especially the ones there) because they declare it as impossible, a myth and as a fact that it did not happen.
Of course, this ia a "argument from silence" as well, so I guess I could tack on James' quote here also.
"But an argument from silence is recognized by all to be quite weak. It implies that one must have almost total evidence before demonstration is possible. If this is the case, one could argue cogently that there may have been airplanes in the time of Christ." Dewey M. Beegle, Scripture, Tradition, and Infallibility (Grand Rapids: Wm. B. Eerdmans Publishing Co., 1973), p. 178.
I would point out that there is just as much scriptural justification for the Assumption of Mary as there is for sola scriptura, but one Mr. Swan rejects outright, and the other he clings to as absolute truth, go figure.