The word(s) "swear" appears 32 time(s) in 30 verse(s) in Quran in Saheeh International translation.

(1) For those who swear not to have sexual relations with their wives is a waiting time of four months, but if they return [to normal relations] - then indeed, Allah is Forgiving and Merciful.

(2) So how [will it be] when disaster strikes them because of what their hands have put forth and then they come to you swearing by Allah, "We intended nothing but good conduct and accommodation."

(3) O you who have believed, testimony [should be taken] among you when death approaches one of you at the time of bequest - [that of] two just men from among you or two others from outside if you are traveling through the land and the disaster of death should strike you. Detain them after the prayer and let them both swear by Allah if you doubt [their testimony, saying], "We will not exchange our oath for a price, even if he should be a near relative, and we will not withhold the testimony of Allah. Indeed, we would then be of the sinful."

(4) But if it is found that those two were guilty of perjury, let two others stand in their place [who are] foremost [in claim] from those who have a lawful right. And let them swear by Allah, "Our testimony is truer than their testimony, and we have not transgressed. Indeed, we would then be of the wrongdoers."

(5) And they swear by Allah their strongest oaths that if a sign came to them, they would surely believe in it. Say, "The signs are only with Allah." And what will make you perceive that even if a sign came, they would not believe.

(6) Had it been an easy gain and a moderate trip, the hypocrites would have followed you, but distant to them was the journey. And they will swear by Allah, "If we were able, we would have gone forth with you," destroying themselves [through false oaths], and Allah knows that indeed they are liars.

(7) And they swear by Allah that they are from among you while they are not from among you; but they are a people who are afraid.

(8) They swear by Allah to you [Muslims] to satisfy you. But Allah and His Messenger are more worthy for them to satisfy, if they should be believers.

(9) They swear by Allah that they did not say [anything against the Prophet] while they had said the word of disbelief and disbelieved after their [pretense of] Islam and planned that which they were not to attain. And they were not resentful except [for the fact] that Allah and His Messenger had enriched them of His bounty. So if they repent, it is better for them; but if they turn away, Allah will punish them with a painful punishment in this world and the Hereafter. And there will not be for them on earth any protector or helper.

(10) They will swear by Allah to you when you return to them that you would leave them alone. So leave them alone; indeed they are evil; and their refuge is Hell as recompense for what they had been earning.