3 verses have
arm
in Edition Clear Qur'an by Talal Itani / Al-Qasas (The Stories)

28:29When Moses had completed the term, and departed with his family, he noticed a fire by the side of the Mount. He said to his family, “Stay here, I have glimpsed a fire. Perhaps I can bring you some information from there, or an ember from the fire, that you may warm yourselves.”

28:32Put your hand inside your pocket, and it will come out white, without blemish. And press your arm to your side, against fear. These are two proofs from your Lord, to Pharaoh and his dignitaries. They are truly sinful people.”

28:35He said, “We will strengthen your arm with your brother, and We will give you authority, so they will not touch you. By virtue of Our signs, you and those who follow you will be the triumphant.”