Al Anbiya, 111 Ayah
21:111
وَإِنۡ أَدۡرِي لَعَلَّهُۥ فِتۡنَةٞ لَّكُمۡ وَمَتَٰعٌ إِلَىٰ حِينٖ ١١١
Wa 'In 'Adrī La`allahu Fitnatun Lakum Wa Matā`un 'Ilá Ĥīnin
And I know not; perhaps it is a trial for you and enjoyment for a time."