(Hood) 11 : 71
وَامْرَأَتُهُ قَائِمَةٌ فَضَحِكَتْ فَبَشَّرْنَاهَا بِإِسْحَاقَ وَمِنْ وَرَاءِ إِسْحَاقَ يَعْقُوبَ

And his woman was standing there, and she smiled; then We gave her herald of Ishaaq; and succeeding Ishaaq, of Ya’qoob.

Ismael was the first child of Ibrahim from Hajara. When Ibrahim’s wife Sarah was informed of the glad news of Ishaaq and his son Ya’qoob, as mentioned in the verse, "And she smiled," it indicates her happiness because the Angels were sent to destroy the Mujirim people of Looth. Ishaaq is described as the son endowed with knowledge in verses 15:53 and 51:28. Ismael, Ibrahim’s forbearing son mentioned in verse 37:101, was the one who was ordered to be sacrificed.