וּבְנֵ֖י נַפְתָּלִ֑י יַחְצְאֵ֥ל וְגוּנִ֖י וְיֵ֥צֶר וְשִׁלֵּֽם׃
און די זין פֿון נפֿתּלין: יַחצאֵל, און גוני, און יֵצֶר, און שִלֵם.
Da'at Zekenim
וחמש את ארץ מצרים, “and impose a tax of one fifth of the harvest to be given to those in charge for storage under safe conditions.” It is from this stored grain that distribution started to be made as we read in Genesis 46,24.