וַתֹּ֣אמֶר אֵלָ֔יו גַּם־תֶּ֥בֶן גַּם־מִסְפּ֖וֹא רַ֣ב עִמָּ֑נוּ גַּם־מָק֖וֹם לָלֽוּן׃
E gli soggiunse: E di paglia e di foraggio è abbondanza presso di noi, come pure di luogo da pernottare.
Rashi on Genesis
מספוא PROVENDER — All kinds of camels’ food is called מספוא e. g., straw and barley.
Rashbam on Genesis
גם תבן, also straw, something which you did not inquire about as well as lodging, something which you did inquire about. It is a habit of Scriptures to use the word גם, “also,” repeatedly, even if this is not strictly necessary in order to correctly understand the text.
Sforno on Genesis
גם תבן גם מספוא, not only do we have room for the camels but we also have feed for them.