The Religion is not just leaving off outer prohibitions. Rather, it is to fulfill what Allah Loves along with this. Most religious people today don’t do this except when it comes to things that the majority of people accept and agree with them in. As for Jihad, enjoining good and preventing evil, giving advice for the sake of Allah and His Messenger to His worshipers, giving aid and victory to Allah and His Messenger and Book and Religion – these obligations don’t even occur to them, let alone evoke a desire on their part to carry them out, let alone be carried them out by them!
The lowest of people in the Religion and the worst of them with Allah are those who abandon these obligations, even if he practices the most zuhd from everything in this world. It is rare to find from them one whose face becomes red for the sake of Allah, and who becomes angry due to His limits being violated, and who gives all he has to help his religion. Those who fall into major sins are better with Allah than these people.
[Ibn Qayyim – ‘ad-Durar as-Saniyyah’; 8/75-79]