﴿ وَإِنْ أَدْرِى لَعَلَّهُۥ فِتْنَةٌۭ لَّكُمْ وَمَتَٰعٌ إِلَىٰ حِينٍۢ ﴾

“But [as for me,] I do not know whether, perchance, this [delay in God’s judgment] is but a trial for you, and a [merciful] respite for a while.””

I do not know; perhaps that which I have notified you of but whose time is not known may be a trial a test for you to see how you will act and an enjoyment for a while that is until your terms of life are concluded this second clause wa-matā‘un ‘and an enjoyment’ counters the former which is the object of the optative expressed by the particle la‘alla ‘perhaps’; the second clause cannot be an optative.