Genesis 32:19

And so commanded he the second and third
Those who had the care of the second and third droves, he ordered them to say the same things, and in the same words as he had the first: and all that followed the droves;
either all that were with the principal driver; that if any of them should happen to be interrogated first, they might know what to answer; or those that followed the other droves, besides the three mentioned, which countenances Aben Ezra's notion of five droves, before observed: saying, on this manner shall you speak to Esau, when you find him;
that is, when they met him and perceived it was he that put questions to them.