Surah As-Saffat, ayah 112

37:112

وَبَشَّرۡنَٰهُ بِإِسۡحَٰقَ نَبِيّٗا مِّنَ ٱلصَّٰلِحِينَ ١١٢

Wabassharnāhu bi ishāqa nabiyyam minas-sālihīn

And We gave him good tidings of Isaac, a prophet from among the righteous.1299

Footnotes

1299 This verifies that the firstborn son who was to be sacrificed was Ishmael and not Isaac, as claimed by the Jews and Christians.