At-Tawbah 9:86

وَإِذَآ أُنزِلَتۡ سُورَةٌ أَنۡ ءَامِنُواْ بِٱللَّهِ وَجَٰهِدُواْ مَعَ رَسُولِهِ ٱسۡتَـٔۡذَنَكَ أُوْلُواْ ٱلطَّوۡلِ مِنۡهُمۡ وَقَالُواْ ذَرۡنَا نَكُن مَّعَ ٱلۡقَٰعِدِينَ 86

And when a surah was revealed [enjoining them] to believe in Allah and to fight with His Messenger, those of wealth among them asked your permission [to stay back] and said, "Leave us to be with them who sit [at home]