C. F. Keil and Franz Delitzsch on Genesis 42:26-27

Gen 42:26-27

Thus they started with their asses laden with the corn. On the way, when they had reached their halting-place for the night, one of them opened his sack to feed the ass, and found his money in it. מלון, camping-place for the night, is merely a resting-place, not an inn, both here and in Exo 4:24; for there can hardly have been caravanserais at that time, either in the desert or by the desert road. אמתחת: an antiquated word for a corn-sack, occurring only in these chapters, and used even here interchangeably with שׂק.