Mosiah 5

And it came to pass that king Mosiah granted that sixteen of their strong men might go up to the land of Lehi-Nephi to inquire concerning their brethren. And it came to pass that on the morrow they started to go up, having with them one Ammon, he being a strong and mighty man, and a descendant of Zarahemla, and he was also their leader. And now they knew not the course they should travel in the wilderness to go up to the land of Lehi-Nephi; therefore they wandered many days in the wilderness, even forty days did they wander.