The word(s) "oath" appears 29 time(s) in 25 verse(s) in Quran in Muhammad Pickthal translation.

(1) And make not Allah, by your oaths, a hindrance to your being righteous and observing your duty unto Him and making peace among mankind. Allah is Hearer, Knower.

(2) Allah will not take you to task for that which is unintentional in your oaths. But He will take you to task for that which your hearts have garnered. Allah is Forgiving, Clement.

(3) Lo! those who purchase a small gain at the cost of Allah's covenant and their oaths, they have no portion in the Hereafter. Allah will neither speak to them nor look upon them on the Day of Resurrection, nor will He make them grow. Theirs will be a painful doom.

(4) Then will the believers say (unto the people of the Scripture): are these they who swore by Allah their most binding oaths that they were surely with you? Their works have failed, and they have become the losers.

(5) Allah will not take you to task for that which is unintentional in your oaths, but He will take you to task for the oaths which ye swear in earnest. The expiation thereof is the feeding of ten of the needy with the average of that wherewith ye feed your own folk, or the clothing of them, or the liberation of a slave, and for him who findeth not (the wherewithal to do so) then a three days' fast. This is the expiation of your oaths when ye have sworn; and keep your oaths. Thus Allah expoundeth unto you His revelations in order that ye may give thanks.

(6) Thus it is more likely that they will bear true witness or fear that after their oaths the oaths (of others) will be taken. So be mindful of your duty (to Allah) and hearken. Allah guideth not the froward folk.

(7) And they swear a solemn oath by Allah that if there come unto them a portent they will believe therein. Say; Portents are with Allah and (so is) that which telleth you that if such came unto them they would not believe.

(8) So when they took pride in that which they had been forbidden, We said unto them: Be ye apes despised and loathed!

(9) And if they break their pledges after their treaty (hath been made with you) and assail your religion, then fight the heads of disbelief - Lo! they have no binding oaths - in order that they may desist.

(10) And they swear by Allah their most binding oaths (that) Allah will not raise up him who dieth. Nay, but it is a promise (binding) upon Him in truth, but most of mankind know not,