Daniel 10:2

In the third year of Cyrus king of Persia a thing was revealed unto Daniel, whose name was called Belteshazzar; and the thing [was] true, but the time appointed [was] long: and he understood the thing, and had understanding of the vision.

I ate no pleasant bread, neither came flesh nor wine in my mouth, neither did I anoint myself at all, till three whole weeks were fulfilled.

And in the four and twentieth day of the first month, as I was by the side of the great river, which [is] Hiddekel;