CAUSE:

47:7 - O ye who believe! if ye will aid (the cause of) Allah He will aid you and plant your feet firmly.

74:7 - But for thy Lord's (Cause) be patient and constant! 5782

5782 Our zeal for Allah's Cause itself requires that we should not be impatient, and that we should show constancy in our efforts for His Cause. For we have faith, and we know that He is All-Good, All-Wise, and All-Powerful, and everything will ultimately be right. (74.7)

4:74 - Let those fight in the cause of Allah who sell the life of this world for the Hereafter. To him who fighteth in the cause of Allah whether he is slain or gets victory soon shall We give him a reward of great (value). 591

591 It is not every one,-least of all, poltroons and faint-hearted persons-who is fit to fight in the cause of Allah. To do so is a privilege, and those who understand the privilege are prepared to sacrifice all their interests in this life, and this life itself; for they know that it is the sacrifice of something fleeting and of little value, for the sake of something everlasting, and of immense value. Whether (in appearance) they win or lose, in reality they win the prize for which they are fighting,-viz., honour and glory in the sight of Allah. Note that the only alternatives here are Death or Victory! The true fighter knows no defeat. (4.74)

4:75 - And why should ye not fight in the cause of Allah and of those who being weak are ill-treated (and oppressed)?

593 Even from the human point of view the cause of Allah is the cause of justice, the cause of the oppressed. In the great persecution, before Makkah was won again, what sorrows, threats, tortures, and oppressions, were suffered by those whose faith was unshaken? Muhammad's life and that of his adherents was threatened: they were mocked, assaulted, insulted and beaten; those within the power of the enemy were put into chains and cast into prison; others were boycotted, and shut out of trade, business, and social intercourse; they could not even buy the food they wanted, or perform their religious duties. The persecution was redoubled for the believing slaves, women, and children after the Hijrat. Their cry for a protector, and helper from Allah was answered when Muhammad the Chosen One brought freedom and peace to Makkah again. (4.75)

4:76 - Those who believe fight in the cause of Allah and those who reject faith fight in the cause of evil: so fight ye against the friends of Satan: feeble indeed is the cunning of Satan. 594

594 Auliyaa plural of wali, friend, supporter, protector, patron; from the same root as maula, for which see iv. 33, n. 543. (4.76)

SEE:

Fiqh-us-Sunnah
Fiqh 3.69

Sadaqah for the Cause of Allah

Sahih Al-Bukhari HadithHadith 4.46
Narrated by Abu Huraira

heard Allah's Apostle saying, "The example of a mujahid in Allah's cause--and Allah knows better who really strives in His cause--is like a person who fasts and prays continuously. Allah guarantees that He will admit the mujahid in His cause into Paradise if he is killed, otherwise He will return him to his home safely with rewards and war booty."

See: 2:190, 244, 246, 258, 3:156; 4:74,75,94; 8:60,72; 9:19,20,91,111,112,120,121; 14:13,14; 16:41,45; 27:60; etc.