The word(s) "arm" appears 115 time(s) in 99 verse(s) in Quran in Mohsin Khan translation.

(11) Those (i.e. believers) unto whom the people (hypocrites) said, "Verily, the people (pagans) have gathered against you (a great army), therefore, fear them." But it (only) increased them in Faith, and they said: "Allah (Alone) is Sufficient for us, and He is the Best Disposer of affairs (for us). "

(12) So they returned with Grace and Bounty from Allah. No harm touched them; and they followed the good Pleasure of Allah. And Allah is the Owner of Great Bounty.

(13) And let not those grieve you (O Muhammad صلى الله عليه وسلم) who rush with haste to disbelieve; verily, not the least harm will they do to Allah. It is Allah's Will to give them no portion in the Hereafter. For them there is a great torment.

(14) Verily, those who purchase disbelief at the price of Faith, not the least harm will they do to Allah. For them, there is a painful torment.

(15) So their Lord accepted of them (their supplication and answered them), "Never will I allow to be lost the work of any of you, be he male or female. You are (members) one of another, so those who emigrated and were driven out from their homes, and suffered harm in My Cause, and who fought, and were killed (in My Cause), verily, I will expiate from them their evil deeds and admit them into Gardens under which rivers flow (in Paradise); a reward from Allah, and with Allah is the best of rewards."

(16) O you who believe! Endure and be more patient (than your enemy), and guard your territory by stationing army units permanently at the places from where the enemy can attack you, and fear Allah, so that you may be successful.

(17) And give to the women (whom you marry) their Mahr (obligatory bridal-money given by the husband to his wife at the time of marriage) with a good heart; but if they, of their own good pleasure, remit any part of it to you, take it, and enjoy it without fear of any harm (as Allah has made it lawful).

(18) And whoever of you have not the means wherewith to wed free, believing women, they may wed believing girls from among those (slaves) whom your right hands possess, and Allah has full knowledge about your Faith; you are one from another. Wed them with the permission of their own folk (guardians, Auliya' or masters) and give them their Mahr according to what is reasonable; they (the above said captive and slave-girls) should be chaste, not committing illegal sex, nor taking boy-friends. And after they have been taken in wedlock, if they commit illegal sexual intercourse, their punishment is half that for free (unmarried) women. This is for him among you who is afraid of being harmed in his religion or in his body; but it is better for you that you practise self-restraint, and Allah is Oft-Forgiving, Most Merciful.

(19) When you (O Messenger Muhammad صلى الله عليه وسلم) are among them, and lead them in As-Salat (the prayer), let one party of them stand up [in Salat (prayer)] with you taking their arms with them; when they finish their prostrations, let them take their positions in the rear and let the other party come up which have not yet prayed, and let them pray with you taking all the precautions and bearing arms. Those who disbelieve wish, if you were negligent of your arms and your baggage, to attack you in a single rush, but there is no sin on you if you put away your arms because of the inconvenience of rain or because you are ill, but take every precaution for yourselves. Verily, Allah has prepared a humiliating torment for the disbelievers.

(20) Had not the Grace of Allah and His Mercy been upon you (O Muhammad صلى الله عليه وسلم), a party of them would certainly have made a decision to mislead you, but (in fact) they mislead none except their own selves, and no harm can they do to you in the least. Allah has sent down to you the Book (The Qur'an), and Al-Hikmah (Islamic laws, knowledge of legal and illegal things i.e. the Prophet's Sunnah - legal ways), and taught you that which you knew not. And Ever Great is the Grace of Allah unto you (O Muhammad صلى الله عليه وسلم).