when a surah is sent down have faith in allah and wage jihad along with his apostle the affluent among them ask you for leave and say let us remain with those who sit back.
وإذا أنزلت سورة أن آمنوا بالله وجاهدوا مع رسوله استأذنك أولو الطول منهم وقالوا ذرنا نكن مع القاعدين