﴿ وَوَهَبْنَا لَهُۥٓ إِسْحَٰقَ وَيَعْقُوبَ نَافِلَةًۭ ۖ وَكُلًّۭا جَعَلْنَا صَٰلِحِينَ ﴾

“And We bestowed upon him Isaac and [Isaacs son] Jacob as an additional gift and caused all of them to be righteous men,”

(And We bestowed upon him) i.e. upon Abraham (Isaac) as a son, (and Jacob) as a grandson. (Each of them) i.e. Abraham, Isaac, Jacob and their sons (We made righteous) in their religion, and messengers.