The word(s) "oath" appears 26 time(s) in 21 verse(s) in Quran in Muhammad Habib Shakir translation.

(11) And be not like her who unravels her yarn, disintegrating it into pieces after she has spun it strongly. You make your oaths to be means of deceit between you because (one) nation is more numerous than (another) nation. Allah only tries you by this; and He will most certainly make clear to you on the resurrection day that about which you differed.

(12) And do not make your oaths a means of deceit between you, lest a foot should slip after its stability and you should taste evil because you turned away from Allah's way and grievous punishment be your (lot).

(13) And they swear by Allah with the most energetic of their oaths that if you command them they would certainly go forth. Say: Swear not; reasonable obedience (is desired); surely Allah is aware of what you do.

(14) And they swore by Allah with the strongest of their oaths that if there came to them a warner they would be better guided than any of the nations; but when there came to them a warner it increased them in naught but aversion.

(15) And take in your hand a green branch and beat her with It and do not break your oath; surely We found him patient; most excellent the servant! Surely he was frequent in returning (to Allah).

(16) And most surely it is a very great oath if you only knew;

(17) They make their oaths to serve as a cover so they turn away from Allah's way; therefore they shall have an abasing chastisement.

(18) They make their oaths a shelter, and thus turn away from Allah's way; surely evil is that which they do.

(19) Allah indeed has sanctioned for you the expiation of your oaths and Allah is your Protector, and He is the Knowing the Wise.

(20) Or have you received from Us an agreement confirmed by an oath extending to the day of resurrection that you shall surely have what you demand?