At Tawbah Ayah 86

وَإِذَآ أُنزِلَتْ سُورَةٌ أَنْ ءَامِنُواْ بِٱللَّهِ وَجَـٰهِدُواْ مَعَ رَسُولِهِ ٱسْتَــْٔذَنَكَ أُوْلُواْ ٱلطَّوْلِ مِنْهُمْ وَقَالُواْ ذَرْنَا نَكُن مَّعَ ٱلْقَـٰعِدِينَ ٨٦ Whenever a sûrah is revealed stating, “Believe in Allah and struggle along with His Messenger,” the rich among them would ask to be exempt, saying, “Leave us with those who remain behind.”