فَرَدَدناهُ إِلىٰ أُمِّهِ كَي تَقَرَّ عَينُها وَلا تَحزَنَ وَلِتَعلَمَ أَنَّ وَعدَ اللَّهِ حَقٌّ وَلـٰكِنَّ أَكثَرَهُم لا يَعلَمونَ

And so, We returned him to his mother, to bring her joy, alleviate her sorrow, and reassure her that God’s promise is true. Yet, most of them don’t understand.