Al-Mu'minun - 23:93

قُل رَّبِّ إِمَّا تُرِيَنِّي مَا يُوعَدُونَ
[23:93]
Say: O my Lord! if Thou shouldst make me see what they are threatened with:
Say: "O my Lord! if Thou wilt show me (in my lifetime) that which they are warned against,-
Say: My Lord! If Thou shouldst show me that which they are promised.