The word(s) "once" appears 105 time(s) in 102 verse(s) in Quran in Mohsin Khan translation.

(51) "O two companions of the prison! As for one of you, he (as a servant) will pour out wine for his lord (king or master) to drink; and as for the other, he will be crucified and birds will eat from his head. Thus is the case judged concerning which you both did inquire."

(52) It is the same (to Him) whether any of you conceal his speech or declares it openly, whether he be hid by night or goes forth freely by day.

(53) "O our Lord! Certainly, You know what we conceal and what we reveal. Nothing on the earth or in the heaven is hidden from Allah.

(54) And Allah knows what you conceal and what you reveal.

(55) Certainly, Allah knows what they conceal and what they reveal. Truly, He likes not the proud.

(56) Then, on the Day of Resurrection, He will disgrace them and will say: "Where are My (so called) partners concerning whom you used to disagree and dispute (with the believers, by defying and disobeying Allah)?" Those who have been given the knowledge (about the Torment of Allah for the disbelievers) will say: "Verily! Disgrace and misery this Day are upon the disbelievers.

(57) And say not concerning that which your tongues put forth falsely: "This is lawful and this is forbidden," so as to invent lies against Allah. Verily, those who invent lies against Allah will never prosper.

(58) The Sabbath was only prescribed for those who differed concerning it, and verily, your Lord will judge between them on the Day of Resurrection about that wherein they used to differ.

(59) And walk not on the earth with conceit and arrogance. Verily, you can neither rend nor penetrate the earth, nor can you attain a stature like the mountains in height.

(60) And they ask you (O Muhammad صلى الله عليه و سلم) concerning the Ruh (the Spirit); Say: "The Ruh (the Spirit) is one of the things, the knowledge of which is only with my Lord. And of knowledge, you (mankind) have been given only a little."