וַתֵּ֨לֶד ל֜וֹ אֲח֣וֹת תַּחְפְּנֵ֗יס אֵ֚ת גְּנֻבַ֣ת בְּנ֔וֹ וַתִּגְמְלֵ֣הוּ תַחְפְּנֵ֔ס בְּת֖וֹךְ בֵּ֣ית פַּרְעֹ֑ה וַיְהִ֤י גְנֻבַת֙ בֵּ֣ית פַּרְעֹ֔ה בְּת֖וֹךְ בְּנֵ֥י פַרְעֹֽה׃
And the sister of Tahpenes bore him Genubath his son, whom Tahpenes weaned in Pharaoh’s house; and Genubath was in Pharaoh’s house among the sons of Pharaoh.
Read halakhic rulings (Jewish law) on I Kings 11:20: and classical halakhic sources.