The word(s) "zeal" appears 2 time(s) in 2 verse(s) in Quran in Abdullah Yusuf Ali translation.

(1) And who is more unjust than he who forbids that in places for the worship of Allah, Allah's name should be celebrated?-whose zeal is (in fact) to ruin them? It was not fitting that such should themselves enter them except in fear. For them there is nothing but disgrace in this world, and in the world to come, an exceeding torment.

(2) When the Believers saw the Confederate forces, they said: "This is what Allah and his Messenger had promised us, and Allah and His Messenger told us what was true." And it only added to their faith and their zeal in obedience.