Gen 42:27

וַיִּפְתַּ֨ח הָאֶחָ֜ד אֶת־שַׂקּ֗וֹ לָתֵ֥ת מִסְפּ֛וֹא לַחֲמֹר֖וֹ בַּמָּל֑וֹן וַיַּרְא֙ אֶת־כַּסְפּ֔וֹ וְהִנֵּה־ה֖וּא בְּפִ֥י אַמְתַּחְתּֽוֹ׃

At the place where they lodged for the night, one of them opened his sack to get feed for his donkey, and he saw his silver in the mouth of the sack.