Reference for Genesis 21:11

וַיֵּ֧רַע הַדָּבָ֛ר מְאֹ֖ד בְּעֵינֵ֣י אַבְרָהָ֑ם עַ֖ל אוֹדֹ֥ת בְּנֽוֹ׃

And the thing was very grievous in Abraham’s sight on account of his son.