וְאַ֨בְרָהָ֔ם בֶּן־תִּשְׁעִ֥ים וָתֵ֖שַׁע שָׁנָ֑ה בְּהִמֹּל֖וֹ בְּשַׂ֥ר עָרְלָתֽוֹ׃
Or, Abraham était âgé de quatre-vingt-dix-neuf ans, lorsque fut retranchée la chair de son excroissance.
The Midrash of Philo
Why does he say, Abraham was ninety and nine years old when he was circumcised, and Ishmael his son was thirteen years old? (Genesis 17:24).