וַיָּ֤שָׁב רְאוּבֵן֙ אֶל־הַבּ֔וֹר וְהִנֵּ֥ה אֵין־יוֹסֵ֖ף בַּבּ֑וֹר וַיִּקְרַ֖ע אֶת־בְּגָדָֽיו׃
And Reuben returned unto the pit; and, behold, Joseph was not in the pit; and he rent his clothes.
Read halakhic rulings (Jewish law) on Genesis 37:29: and classical halakhic sources.