Qaloo kathaliki qala rabbuki innahu huwa alhakeemu alAAaleem (surah zariyat: 30)

Tafseer Tafheem-ul-Quran by Syed Abu-al-A'la Maududi

(51:30) They said: 'So has your Lord said (that you shall have a boy). Surely He is Most Wise, All-Knowing.' *29

Qaaloo kazaaliki qaala Rabbuki innahoo huwal hakeemul `aleem

*29) The object of this story is to tell that Allah will certainly reward His servant, who did full justice to the rights of His worship in the world, in the Hereafter handsomely, but even In this world he rewarded him well by giving him children at an age when according to the common physical laws he could not beget children and his aged wife having remained childless throughout life had completely despaired of ever bearing children; and then He granted him such extraordinary children as have not been granted to any one else in the world. There has been no other man in history in whose line four Prophets might have been born in succession. It was the Prophet Abraham alone whose line continued to be blessed with Prophet hood for three generations, and the illustrious Prophets like Ishmael, Isaac, Jacob and Joseph (peace be upon them) emerged from his house.