Al-Qasas 28:35

Qala sanashuddu AAadudakabi-akheeka wanajAAalu lakuma sultanan falayasiloona ilaykuma bi-ayatinaantuma wamani ittabaAAakuma alghaliboon

[Allāh] said, "We will strengthen your arm through your brother and grant you both supremacy so they will not reach you. [It will be] through Our signs; you and those who follow you will be the predominant."

He (Allah) said, “We will strengthen your arm with your brother, and will give both of you such a power that they will have no access to you (to cause any harm) because of Our signs. You and your followers will be the victors.”