two sons. (Related by Ibn Majah and Abu Dawud).This is the kind of Fitnah which the believer has to avoid because the truth is not distinct from falsehood.
As for the kind in which the truth is clear and the truth is distinguished from the falsehood and the oppressor from the oppressed, the Muslim has to engage in it to help the oppressed and deter the oppressor and fight the disbeliever. Regarding that meaning, Allah (Exalted be He) says, 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. This is better for you, if you but knew.
Allah (Glorified be He) also says: O you who believe! Shall I guide you to a trade that will save you from a painful torment? The same meaning is further explained in His saying, That you believe in Allâh and His Messenger (Muhammad ﺻﻠﻰ ﺍﷲ ﻋﻠﻴـﻪ ﻭﺳـﻠﻢ) 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! (If you do so) He will forgive you your sins, and admit you into Gardens under which rivers flow, and pleasant dwellings in ' Adn (Eden) Paradise; that is indeed the great success. And also (He will give you) another (blessing) which you love, help from Allâh (against your enemies) and a near victory. And give glad tidings (O Muhammad ﺻﻠﻰ ﺍﷲ ﻋﻠﻴﻪ ﻭﺳﻠﻢ) to the believers.
In these Ayahs, Allah (Exalted be He) promises a reward for those who fight for His cause and raise the banner of truth; He (may He be Praised) says, O you who believe! Shall I guide you to a trade that will save you from a painful torment? Allah (Exalted be He) has described this act as a trade which saves from a painful torture. This is further explained in His saying, 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 It is wellknown that Jihad is part of faith, but Allah (Exalted be He) mentions it exclusively due to its great reward and the dire need to explain its virtue. Allah (may He be Praised) says, and that you strive hard and fight in the Cause of Allâh with your wealth and your lives Wealth is mentioned first because of its importance and farreaching benefits. It may be used in buying weapons and providing fighters with food and equipment. It is, therefore, mentioned before lives in many Ayahs. Allah (Exalted be He) then says, that will be better for you, if you but know! Allah (Exalted be He) then explains how it is better in His saying,