قُلْ هَلْ تَرَبَّصُونَ بِنَا إِلاَّ إِحْدَى الْحُسْنَيَيْنِ وَنَحْنُ نَتَرَبَّصُ بِكُمْ أَن يُصِيبَكُمُ اللّهُ بِعَذَابٍ مِّنْ عِندِهِ أَوْ بِأَيْدِينَا فَتَرَبَّصُواْ إِنَّا مَعَكُم مُّتَرَبِّصُونَ
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سورة التوبة
(9/52) Say thou await ye for us ought save one of the two excellences; while for you we wait that Allah shall afflict you with a torment from Himself or at our hands. Await then, we also are with you awaiting.
Surah At-Tawbah