First Nephi 22:19-21
Nephi pauses his prophecies of the latter days to quote Moses:
Not only is this a prophecy about the coming of the Savior in mortality, but it is also a prophecy of events to occur prior to the second coming.
It is unclear exactly how this "cut off" will be fulfilled, but it doesn't sound good for those affected, those "who fight against Zion". Verse 23 identifies them as "all those who belong to the kingdom of the devil", and that they will "be brought low in the dust; they...must be consumed as stubble".
When the Savior visits the Nephites, he also quotes this writing and sheds more light on how it will be accomplished. (3 Nephi 21:11-22)
The angel Moroni also quoted Moses's prophecy when he visited Joseph Smith. (JSH 1:40)