The word(s) "ought" appears 205 time(s) in 189 verse(s) in Quran in Mohsin Khan translation.

(41) Do you think that you shall be left alone while Allah has not yet tested those among you who have striven hard and fought and have not taken Walijah [(Bitanah - helpers, advisors and consultants from disbelievers, pagans.) giving openly to them their secrets] besides Allah, and His Messenger, and the believers. Allah is Well-Acquainted with what you do.

(42) Those who believed (in the Oneness of Allah - Islamic Monotheism) and emigrated and strove hard and fought in Allah's Cause with their wealth and their lives are far higher in degree with Allah. They are the successful.

(43) But the Messenger (Muhammad صلى الله عليه وسلم) and those who believed with him (in Islamic Monotheism) strove hard and fought with their wealth and their lives (in Allah's Cause). Such are they for whom are the good things, and it is they who will be successful.

(44) They (the hypocrites) will present their excuses to you (Muslims), when you return to them. Say (O Muhammad صلى الله عليه وسلم) "Present no excuses, we shall not believe you. Allah has already informed us of the news concerning you. Allah and His Messenger will observe your deeds. In the end you will be brought back to the All-Knower of the unseen and the seen, then He (Allah) will inform you of what you used to do." [Tafsir At-Tabari]

(45) And among the bedouins around you, some are hypocrites, and so are some among the people of Al-Madinah who persist in hypocrisy; you (O Muhammad صلى الله عليه وسلم) know them not, We know them. We shall punish them twice, and thereafter they shall be brought back to a great (horrible) torment.

(46) And say (O Muhammad صلى الله عليه وسلم) "Do deeds! Allah will see your deeds, and (so will) His Messenger and the believers. And you will be brought back to the All-Knower of the unseen and the seen. Then He will inform you of what you used to do."

(47) There! Every person will know (exactly) what he had earned before and they will be brought back to Allah, their rightful Maula (Lord), and their invented false deities will vanish from them.

(48) And if every person who had wronged (by disbelieving in Allah and by worshipping others besides Allah) possessed all that is on the earth and sought to ransom himself therewith (it will not be accepted), and they would feel in their hearts regret when they see the torment, and they will be judged with justice, and no wrong will be done unto them.

(49) Then after him We sent Messengers to their people. They brought them clear proofs, but they would not believe what they had already rejected beforehand. Thus We seal the hearts of the transgressors (those who disbelieve in the Oneness of Allah and disobey Him).

(50) Then when they had cast down, Musa (Moses) said: "What you have brought is sorcery; Allah will surely make it of no effect. Verily, Allah does not set right the work of Al-Mufsidun (the evil-doers, corrupters).