מדרש על בראשית 43:8

Who was one such guarantor? Judah, for he said: Send the lad with me … I will be surety for him (Gen. 43:8–9). And he (Jacob) said: “My son shall not go down with you … if harm befall him by the way in which ye go (ibid. 42:38). From this verse, you may conclude that Satan brings charges against one who embarks on a journey.