וּֽלְיִשְׁמָעֵ֘אל שְׁמַעְתִּיךָ֒ הִנֵּ֣ה ׀ בֵּרַ֣כְתִּי אֹת֗וֹ וְהִפְרֵיתִ֥י אֹת֛וֹ וְהִרְבֵּיתִ֥י אֹת֖וֹ בִּמְאֹ֣ד מְאֹ֑ד שְׁנֵים־עָשָׂ֤ר נְשִׂיאִם֙ יוֹלִ֔יד וּנְתַתִּ֖יו לְג֥וֹי גָּדֽוֹל׃
And as for Ishmael, I have heard thee; behold, I have blessed him, and will make him fruitful, and will multiply him exceedingly; twelve princes shall he beget, and I will make him a great nation.
Find Talmudic references to Genesis 17:20: , passages from the Talmud Bavli and Yerushalmi.