At Tawbah Ayah 16

أَمْ حَسِبْتُمْ أَن تُتْرَكُواْ وَلَمَّا يَعْلَمِ ٱللَّهُ ٱلَّذِينَ جَـٰهَدُواْ مِنكُمْ وَلَمْ يَتَّخِذُواْ مِن دُونِ ٱللَّهِ وَلَا رَسُولِهِۦ وَلَا ٱلْمُؤْمِنِينَ وَلِيجَةً‌ۚ وَٱللَّهُ خَبِيرُۢ بِمَا تَعْمَلُونَ ١٦ Do you ?believers? think that you will be left without Allah proving who among you ?truly? struggles ?in His cause? and never takes trusted allies other than Allah, His Messenger, or the believers? And Allah is All-Aware of what you do.