وَإِذا أُنزِلَت سورَةٌ أَن آمِنوا بِاللَّهِ وَجاهِدوا مَعَ رَسولِهِ استَأذَنَكَ أُولُو الطَّولِ مِنهُم وَقالوا ذَرنا نَكُن مَعَ القاعِدينَ

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]."