(At-twur) 52 : 31
قُلْ تَرَبَّصُوا فَإِنِّي مَعَكُمْ مِنَ الْمُتَرَبِّصِينَ

You say: you wait, then indeed I am also waiting with you.

See explanation 32: 30; and 44: 59.