The word(s) "cause" appears 378 time(s) in 342 verse(s) in Quran in Mohsin Khan translation.

(121) Those who stayed away (from Tabuk expedition) rejoiced in their staying behind the Messenger of Allah; they hated to strive and fight with their properties and their lives in the cause of Allah, and they said: "March not forth in the heat." Say: "The Fire of Hell is more intense in heat"; if only they could understand!

(122) But the Messenger (Muhammad صلى الله عليه وسلم) and those who believed with him (in Islamic Monotheism) strove hard and fought with their wealth and their lives (in Allah's cause). Such are they for whom are the good things, and it is they who will be successful.

(123) They will swear by Allah to you (Muslims) when you return to them, that you may turn away from them. So turn away from them. Surely, they are Rijs [i.e. Najas (impure) because of their evil deeds], and Hell is their dwelling place - a recompense for that which they used to earn.

(124) And of the bedouins there are some who look upon what they spend (in Allah's cause) as a fine and watch for calamities for you, on them be the calamity of evil. And Allah is All-Hearer, All-Knower.

(125) And of the bedouins there are some who believe in Allah and the Last Day, and look upon what they spend in Allah's cause as means of nearness to Allah, and a cause of receiving the Messenger's invocations. Indeed these (spendings in Allah's cause) are a means of nearness for them. Allah will admit them to His Mercy. Certainly Allah is Oft-Forgiving, Most Merciful.

(126) The building which they built will never cease to be a cause of hypocrisy and doubt in their hearts unless their hearts are cut to pieces. (i.e. till they die). And Allah is All-Knowing, All-Wise.

(127) Verily, Allah has purchased of the believers their lives and their properties for (the price) that theirs shall be the Paradise. They fight in Allah's cause, so they kill (others) and are killed. It is a promise in truth which is binding on Him in the Taurat (Torah) and the Injeel (Gospel) and the Qur'an. And who is truer to his covenant than Allah? Then rejoice in the bargain which you have concluded. That is the supreme success.

(128) (The believers whose lives Allah has purchased are) those who turn to Allah in repentance (from polytheism and hypocrisy, etc.), who worship (Him), who praise (Him), who fast (or go out in Allah's cause), who bow down (in prayer), who prostrate themselves (in prayer), who enjoin (on people) Al-Ma'ruf (i.e. Islamic Monotheism and all what Islam has ordained) and forbid (people) from Al-Munkar (i.e. disbelief, polytheism of all kinds and all that Islam has forbidden), and who observe the limits set by Allah (do all that Allah has ordained and abstain from all kinds of sins and evil deeds which Allah has forbidden). And give glad tidings to the believers.

(129) It is not (proper) for the Prophet and those who believe to ask Allah's Forgiveness for the Mushrikun (polytheists, idolaters, pagans, disbelievers in the Oneness of Allah), even though they be of kin, after it has become clear to them that they are the dwellers of the Fire (because they died in a state of disbelief).

(130) And Ibrahim's (Abraham) invoking (of Allah) for his father's forgiveness was only because of a promise he [Ibrahim (Abraham)] had made to him (his father). But when it became clear to him [Ibrahim (Abraham)] that he (his father) is an enemy of Allah, he dissociated himself from him. Verily Ibrahim (Abraham) was Awwah (one who invokes Allah with humility, glorifies Him and remembers Him much) and was forbearing. (Tafsir Al-Qurtubi) .