"O Allah's Messenger, we consider Jihad as the best deed. Should we not fight for Allah's Cause?" He said, "You are commanded with a (kind of) Jihad which includes no fighting, namely Hajj and `Umrah (lesser Pilgrimage)."
March forth, whether you are light (being healthy, young and wealthy) or heavy (being ill, old and poor), and strive hard with your wealth and your lives in the Cause of Allâh.
O you who believe! Shall I guide you to a trade that will save you from a painful torment? That you believe in Allâh and His Messenger (Muhammad ﺻﻠﻰ ﺍﷲ ﻋﻠﻴﻪ ﻭﺳﻠﻢ) and that you strive hard and fight in the Cause of Allâh with your wealth and your lives: that will be better for you, if you but know!
Fight the polytheists by your property, persons, and tongues.