וַנֹּ֙אמֶר֙ אֶל־אֲדֹנִ֔י לֹא־יוּכַ֥ל הַנַּ֖עַר לַעֲזֹ֣ב אֶת־אָבִ֑יו וְעָזַ֥ב אֶת־אָבִ֖יו וָמֵֽת׃
And we said unto my lord: The lad cannot leave his father; for if he should leave his father, his father would die.
Read midrashic interpretation of Genesis 44:22: and classical rabbinic exegesis.