(190) Fight in the way of Allah those who fight you but do not transgress. Indeed. Allah does not like transgressors. (191) And kill them wherever you overtake them and expel them from wherever they have expelled you, and fitnah is worse than killing. And do not fight them at al-Masjid al- Haram until they fight you there. But if they fight you, then kill them. Such is the recompense of the disbelievers. (192) And if they cease, then indeed, Allah is Forgiving and Merciful. (193) Fight them until there is no [more] fitnah and [until] worship is [acknowledged to be] for Allah. But if they cease, then there is to be no aggression except against the oppressors. (194) [Fighting in] the sacred month is for [aggression committed in] the sacred month, and for [all] violations is legal retribution. So whoever has assaulted you, then assault him in the same way that he has assaulted you. And fear Allah and know that Allah is with those who fear Him.
(216) Fighting has been enjoined upon you while it is hateful to you. But perhaps you hate a thing and it is good for you; and perhaps you love a thing and it is bad for you. And Allah Knows, while you know not.
(218) Indeed, those who have believed and those who have emigrated and fought in the cause of Allah - those expect the mercy of Allah. And Allah is Forgiving and Merciful.
(244) And fight in the cause of Allah and know that Allah is Hearing and Knowing.
(74) So let those fight in the cause of Allah who sell the life of this world for the Hereafter. And he who fights in the cause of Allah and is killed or achieves victory - We will bestow upon him a great reward. (75) And what is [the matter] with you that you fight not in the cause of Allah and [for] the oppressed among men, women, and children who say, "Our Lord, take us out of this city of oppressive people and appoint for us from Yourself a protector and appoint for us from Yourself a helper?"
(122) And it is not for the believers to go forth [to battle] all at once. For there should separate from every division of them a group [remaining] to obtain understanding in the religion and warn their people when they return to them that they might be cautious.
I asked the Messenger of Allah (PBUH): Which deed is most beloved to Allah? He replied: Praying on time. Narrator asked: Then what? He replied: Then honoring/being dutiful to one’s parents. Narrator asked: Then what? He replied: Then Jihad for the cause of Allah.
Whoever fights for the word of Allah to be paramount, is in the cause of Allah.