Quran 9:52

قُلۡ هَلۡ تَرَبَّصُونَ بِنَآ إِلَّآ إِحۡدَى ٱلۡحُسۡنَيَيۡنِ‌ۖ وَنَحۡنُ نَتَرَبَّصُ بِكُمۡ أَن يُصِيبَكُمُ ٱللَّهُ بِعَذَابٍ۬ مِّنۡ عِندِهِۦۤ أَوۡ بِأَيۡدِينَا‌ۖ فَتَرَبَّصُوٓاْ إِنَّا مَعَڪُم مُّتَرَبِّصُونَ ٥٢

Say, "You can only expect for us one of two good things (victory or martyrdom), while we expect for you condemnation from ALLAH and retribution from Him, or at our hands. Therefore, wait, and we will wait along with you."