Targum for Genesis 21:2

וַתַּהַר֩ וַתֵּ֨לֶד שָׂרָ֧ה לְאַבְרָהָ֛ם בֵּ֖ן לִזְקֻנָ֑יו לַמּוֹעֵ֕ד אֲשֶׁר־דִּבֶּ֥ר אֹת֖וֹ אֱלֹהִֽים׃

And Sarah conceived, and bore Abraham a son in his old age, at the set time of which God had spoken to him.

And she conceived, and Sarah bare to Abraham a son, who was like to himself in his age, at the time of which the Lord had spoken to him.

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