Halakhah zu Dewarim 24:12

To not prevent surety from its needy owner: That we have been warned not to prevent the surety from its owner at the time that he needs it, but rather to return it to him - a vessel for the day during the day, and a vessel for the night during the night. And about this is it stated (Deuteronomy 24:12), "you shall not go to sleep in his pledge." And the language of Sifrei is "Do not go to sleep when the pledge is with you, but rather return it when he will not have with what to replace it, from the weakness of his poverty" - as the verse (Exodus 22:26) explains, "It is his only clothing, the sole covering for his skin."