Reference for Genesis 30:42

וּבְהַעֲטִ֥יף הַצֹּ֖אן לֹ֣א יָשִׂ֑ים וְהָיָ֤ה הָעֲטֻפִים֙ לְלָבָ֔ן וְהַקְּשֻׁרִ֖ים לְיַעֲקֹֽב׃

but when the flock were feeble, he put them not in; so the feebler were Laban’s, and the stronger Jacob’s.