In the name of Allah the most gracious, the most merciful.
"Surely, Allah has bought their lives and their wealth from the believers, in exchange of (a promise) that Paradise shall be theirs. They fight in the way of Allah, and kill and are killed, on which there is a true promise (as made) in the Torah and the Injil and the Qur’an. And who can be more faithful to his covenant than Allah? So, rejoice in the deal you have made, and that is the great achievement" At-Tawba: 111
Understanding the tafseer from the above ayah, they are indeed lucky to be involved in such business that surely will lead to profit and nothing else. Their business is faith and imaan and jihaad fisabi lillah. Their marketplaces are at the mosques and also among the people. Their working capitals are their days and ages. And their profit will definitely be the forgiveness of Allah and paradise in which rivers flow! MashaAllah!
The first thing athat each and everyone of them thinks about is their religion. Whilst the last thing on their mind, is their dunya. Every one of them says, "My Ummah!" and none of them will ever say "Myself, Myself". They are busy getting the ummah back to the path of Allah, returning to Him in taubah and always enjoining the right and forbids the wrong.
Who can be better in words than the one who calls towards Allah, and acts righteously and says, “I am one of those who submit themselves (to Allah)”? Fussilat: 33