3 Nephi 11:12

And it came to pass that when Jesus had spake these words, the whole multitude fell to the earth, for they remembered that it had been prophesied among them that Christ should shew himself unto them after his ascension into Heaven.

When Jesus spoke these words, the whole crowd fell to the ground. They remembered that the prophets said Christ would show himself to them after he went up to heaven.

When Jesus said this, the whole crowd fell to the ground. They remembered—it had been prophesied that Christ would appear to them after he ascended into heaven.