The word(s) "ought" appears 183 time(s) in 176 verse(s) in Quran in Muhammad Pickthal translation.

(161) And what aileth you that ye spend not in the way of Allah when unto Allah belongeth the inheritance of the heavens and the earth? Those who spent and fought before the victory are not upon a level (with the rest of you). Such are greater in rank than those who spent and fought afterwards. Unto each hath Allah promised good. And Allah is Informed of what ye do.

(162) Say (O Muhammad): Have ye thought: Whether Allah causeth me (Muhammad) and those with me to perish or hath mercy on us, still, who will protect the disbelievers from a painful doom?

(163) Say: Have ye thought: If (all) your water were to disappear into the earth, who then could bring you gushing water?

(164) And Pharaoh and those before him, and the communities that were destroyed, brought error,

(165) And (the Jinn who had listened to the Qur'an said): We had sought the heaven but had found it filled with strong warders and meteors.

(166) What hath brought you to this burning?

(167) Goblets of silver are brought round for them, and beakers (as) of glass

(168) And when the messengers are brought unto their time appointed -

(169) This is the Day of Decision, We have brought you and the men of old together.

(170) And He made dark the night thereof, and He brought forth the morn thereof.