The word(s) "ban" appears 63 time(s) in 54 verse(s) in Quran in Mohsin Khan translation.

(41) Wherein both will be Qasirat-ut-Tarf [chaste females (wives) restraining their glances, desiring none except their husbands], with whom no man or jinni has had tamth before them.

(42) And among Talh (banana-trees) with fruits piled one above another,

(43) Loving (their husbands only), (and) of equal age.

(44) Indeed Allah has heard the statement of her (Khaulah bint Tha'labah) that disputes with you (O Muhammad صلى الله عليه وسلم) concerning her husband (Aus bin As-Samit), and complains to Allah. And Allah hears the argument between you both. Verily, Allah is All-Hearer, All-Seer.

(45) He it is Who drove out the disbelievers among the people of the Scripture (i.e. the Jews of the tribe of banu An-Nadir) from their homes at the first gathering. You did not think that they would get out. And they thought that their fortresses would defend them from Allah! But Allah's (Torment) reached them from a place whereof they expected it not, and He cast terror into their hearts so that they destroyed their own dwellings with their own hands and the hands of the believers. Then take admonition, O you with eyes (to see).

(46) And (it is also for) those who, before them, had homes (in Al-Madinah) and had adopted the Faith, love those who emigrate to them, and have no jealousy in their breasts for that which they have been given (from the booty of banu An-Nadir), and give them (emigrants) preference over themselves even though they were in need of that. And whosoever is saved from his own covetousness, such are they who will be the successful.

(47) Verily, you (believers in the Oneness of Allah - Islamic Monotheism) are more fearful in their (Jews of banu An-Nadir) breasts than Allah. That is because they are a people who comprehend not (the Majesty and Power of Allah).

(48) They are like their immediate predecessors (the Jews of banu Qainuqa', who suffered); they tasted the evil result of their conduct, and (in the Hereafter, there is) for them a painful torment.

(49) O you who believe! When believing women come to you as emigrants, examine them; Allah knows best as to their Faith, then if you ascertain that they are true believers send them not back to the disbelievers. They are not lawful (wives) for the disbelievers nor are the disbelievers lawful (husbands) for them. But give them (the disbelievers) that (amount of money) which they have spent [as their Mahr] to them. And there will be no sin on you to marry them if you have paid their Mahr to them. Likewise hold not the disbelieving women as wives, and ask for (the return of) that which you have spent (as Mahr ) and let them (the disbelievers) ask back for that which they have spent. That is the Judgement of Allah, He judges between you. And Allah is All-Knowing, All-Wise.

(50) O Prophet! When believing women come to you to give you the Bai'ah (pledge), that they will not associate anything in worship with Allah, that they will not steal, that they will not commit illegal sexual intercourse, that they will not kill their children, that they will not utter slander, intentionally forging falsehood (i.e. by making illegal children belonging to their husbands), and that they will not disobey you in Ma'ruf (Islamic Monotheism and all that which Islam ordains), then accept their Bai'ah (pledge), and ask Allah to forgive them. Verily, Allah is Oft-Forgiving, Most Merciful.