‘So he sent his brothers away and they departed. And he said to them, “See that you do not fall out with each other on the way.” '
Alternatively it could be translated ‘do not be agitated on the way'. It is difficult to see why he should warn them against falling out, unless of course he has been aware of some disagreement between them about how they will broach the matter to Jacob. It is equally likely that he is comforting them in view of the task of telling their father that he is alive.