Surah 5. Al-Ma'ida, Ayah 35

Taqwa here too might be translated "fear of Allah", but the very next clause shows that "fear of Allah" does not mean "fear" in the ordinary sense, which would make you avoid the object of fear. On the contrary the "fear of Allah" is the intense desire to avoid everything that is against His Will and Law. It is in fact duty to Allah, for we are told to seek ardently the means by which we may approach Him, and that can only be done by striving with might and main for His cause.

"Prosper" in the real sense, for that is all that matters, as the life of this world is brief and fleeting, and of small account as against Eternity.