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

(71) Those who believe [in the Oneness of Allah (Monotheism) and in Messenger Muhammad صلى الله عليه وسلم , and do not give up their faith because of the harm they receive from the polytheists], and do righteous good deeds, surely, We shall expiate from them their evil deeds and shall reward them according to the best of that which they used to do.

(72) And when harm touches men, they cry sincerely only to their Lord (Allah), turning to Him in repentance; but when He gives them a taste of His Mercy, behold, a party of them associates partners in worship with their Lord.

(73) Say: "Who is he who can protect you from Allah if He intends to harm you, or intends mercy on you?" And they will not find, besides Allah, for themselves any Wali (protector, supporter) or any helper.

(74) And obey not the disbelievers and the hypocrites, and harm them not (in revenge for their harming you till you are ordered). And put your trust in Allah, and Sufficient is Allah as a Wakil (Trustee, or Disposer of affairs). [Tafsir Al-Qurtubi]

(75) Saying: "Make you perfect coats of mail, and balance well the rings of chain armour, and work you (men) righteousness. Truly, I am All-Seer of what you do."

(76) So Today (i.e. the Day of Resurrection), none of you can profit or harm one another. And We shall say to those who did wrong [i.e. worshipped others (like the angels, jinn, prophets, saints, righteous persons) along with Allah]: "Taste the torment of the Fire which you used to belie.

(77) 'Adn (Eden) Paradise (everlasting Gardens) will they enter, therein will they be adorned with bracelets of gold and pearls, and their garments therein will be of silk.

(78) "Shall I take besides Him alihah (gods)? If the Most Gracious (Allah) intends me any harm, their intercession will be of no use for me whatsoever, nor can they save me?

(79) And verily, if you ask them: "Who created the heavens and the earth?" Surely they will say: "Allah (has created them)." Say: "Tell me then, the things that you invoke besides Allah - if Allah intended some harm for me, could they remove His harm? Or if He (Allah) intended some mercy for me, could they withhold His Mercy?" Say: "Sufficient for me is Allah; in Him those who trust (i.e. believers) must put their trust. "

(80) When harm touches man, he calls to Us (for help); then when We have (rescued him from that harm and) changed it into a favour from Us, he says: "Only because of knowledge (that I possess) I obtained it." Nay, it is only a trial, but most of them know not!