וַיִּשָּׂ֣א עֵינָ֗יו וַיַּ֞רְא אֶת־בִּנְיָמִ֣ין אָחִיו֮ בֶּן־אִמּוֹ֒ וַיֹּ֗אמֶר הֲזֶה֙ אֲחִיכֶ֣ם הַקָּטֹ֔ן אֲשֶׁ֥ר אֲמַרְתֶּ֖ם אֵלָ֑י וַיֹּאמַ֕ר אֱלֹהִ֥ים יָחְנְךָ֖ בְּנִֽי׃
And he lifted up his eyes, and saw Benjamin his brother, his mother’s son, and said: ‘Is this your youngest brother of whom ye spoke unto me?’ And he said: ‘God be gracious unto thee, my son.’
Read kabbalistic (mystical) interpretation of Genesis 43:29: and classical mystical sources.