The Quran

وَوَهَبنا لَهُ إِسحاقَ وَيَعقوبَ وَجَعَلنا في ذُرِّيَّتِهِ النُّبُوَّةَ وَالكِتابَ وَآتَيناهُ أَجرَهُ فِي الدُّنيا ۖ وَإِنَّهُ فِي الآخِرَةِ لَمِنَ الصّالِحينَ

Muhammad Asad

And [as for Abraham,] We bestowed upon him Isaac and [Isaac's son] Jacob,¹ and caused prophethood and revelation to continue among his offspring. And We vouchsafed him his reward in this world:² and, verily, in the life to come [too] he shall find himself among the righteous.

I.e., in addition to Ishmael (Isma'il), who had been born some years earlier (cf. 21:72).
Among. other things, by making him "a leader of men" (2:124).