• حَلَّاف
• حَلَفْتُمْ
• يَحْلِفُنَّ
• يَحْلِفُونَ

Appears 12 times in the Quran.

1. 4:62 فَكَيْفَ إِذَآ أَصَٰبَتْهُم مُّصِيبَةٌۢ بِمَا قَدَّمَتْ أَيْدِيهِمْ ثُمَّ جَآءُوكَ يَحْلِفُونَ بِٱللَّهِ إِنْ أَرَدْنَآ إِلَّآ إِحْسَٰنًا وَتَوْفِيقًا

   But how will it be when misfortune befalls them on account of what their hands have sent before? Then they will come to you swearing by Allah: We did not desire (anything) but good and concord.
   

2. 5:89 لَا يُؤَاخِذُكُمُ ٱللَّهُ بِٱللَّغْوِ فِىٓ أَيْمَٰنِكُمْ وَلَٰكِن يُؤَاخِذُكُم بِمَا عَقَّدتُّمُ ٱلْأَيْمَٰنَ فَكَفَّٰرَتُهُۥٓ إِطْعَامُ عَشَرَةِ مَسَٰكِينَ مِنْ أَوْسَطِ مَا تُطْعِمُونَ أَهْلِيكُمْ أَوْ كِسْوَتُهُمْ أَوْ تَحْرِيرُ رَقَبَةٍ فَمَن لَّمْ يَجِدْ فَصِيَامُ ثَلَٰثَةِ أَيَّامٍ ذَٰلِكَ كَفَّٰرَةُ أَيْمَٰنِكُمْ إِذَا حَلَفْتُمْ وَٱحْفَظُوٓا۟ أَيْمَٰنَكُمْ كَذَٰلِكَ يُبَيِّنُ ٱللَّهُ لَكُمْ ءَايَٰتِهِۦ لَعَلَّكُمْ تَشْكُرُونَ

   Allah does not call you to account for what is vain in your oaths, but He calls you to account for the making of deliberate oaths; so its expiation is the feeding of ten poor men out of the middling (food) you feed your families with, or their clothing, or the freeing of a neck; but whosoever cannot find (means) then fasting for three days; this is the expiation of your oaths when you swear; and guard your oaths. Thus does Allah make clear to you His communications, that you may be Fateful.
   

3. 9:42 لَوْ كَانَ عَرَضًا قَرِيبًا وَسَفَرًا قَاصِدًا لَّٱتَّبَعُوكَ وَلَٰكِنۢ بَعُدَتْ عَلَيْهِمُ ٱلشُّقَّةُ وَسَيَحْلِفُونَ بِٱللَّهِ لَوِ ٱسْتَطَعْنَا لَخَرَجْنَا مَعَكُمْ يُهْلِكُونَ أَنفُسَهُمْ وَٱللَّهُ يَعْلَمُ إِنَّهُمْ لَكَٰذِبُونَ

   Had it been a near advantage and a short journey, they would certainly have followed you, but the tedious journey was too long for them; and they swear by Allah: If we had been able, we would certainly have gone forth with you; they cause their own souls to perish, and Allah knows that they are most surely
   

4. 9:56 وَيَحْلِفُونَ بِٱللَّهِ إِنَّهُمْ لَمِنكُمْ وَمَا هُم مِّنكُمْ وَلَٰكِنَّهُمْ قَوْمٌ يَفْرَقُونَ

   And they swear by Allah that they are most surely of you, and they are not of you, but they are a people who are afraid (of you).
   

5. 9:62 يَحْلِفُونَ بِٱللَّهِ لَكُمْ لِيُرْضُوكُمْ وَٱللَّهُ وَرَسُولُهُۥٓ أَحَقُّ أَن يُرْضُوهُ إِن كَانُوا۟ مُؤْمِنِينَ

   They swear to you by Allah that they might please you and, Allah, as well as His Messenger, has a greater right that they should please Him, if they are believers.
   

6. 9:74 يَحْلِفُونَ بِٱللَّهِ مَا قَالُوا۟ وَلَقَدْ قَالُوا۟ كَلِمَةَ ٱلْكُفْرِ وَكَفَرُوا۟ بَعْدَ إِسْلَٰمِهِمْ وَهَمُّوا۟ بِمَا لَمْ يَنَالُوا۟ وَمَا نَقَمُوٓا۟ إِلَّآ أَنْ أَغْنَىٰهُمُ ٱللَّهُ وَرَسُولُهُۥ مِن فَضْلِهِۦ فَإِن يَتُوبُوا۟ يَكُ خَيْرًا لَّهُمْ وَإِن يَتَوَلَّوْا۟ يُعَذِّبْهُمُ ٱللَّهُ عَذَابًا أَلِيمًا فِى ٱلدُّنْيَا وَٱلْءَاخِرَةِ وَمَا لَهُمْ فِى ٱلْأَرْضِ مِن وَلِىٍّ وَلَا نَصِيرٍ

   They swear by Allah that they did not speak, and certainly they did speak, the word of unbelief, and disbelieved after their Islam, and they had determined upon what they have not been able to effect, and they did not find fault except because Allah and His Messenger enriched them out of His grace; therefore if they repent, it will be good for them; and if they turn back, Allah will chastise them with a painful chastisement in this world and the hereafter, and they shall not have in the land any guardian or a helper.
   

7. 9:95 سَيَحْلِفُونَ بِٱللَّهِ لَكُمْ إِذَا ٱنقَلَبْتُمْ إِلَيْهِمْ لِتُعْرِضُوا۟ عَنْهُمْ فَأَعْرِضُوا۟ عَنْهُمْ إِنَّهُمْ رِجْسٌ وَمَأْوَىٰهُمْ جَهَنَّمُ جَزَآءًۢ بِمَا كَانُوا۟ يَكْسِبُونَ

   They will swear to you by Allah when you return to them so that you may turn aside from them; so do turn aside from them; surely they are unclean and their abode is hell; a recompense for what they earned.
   

8. 9:96 يَحْلِفُونَ لَكُمْ لِتَرْضَوْا۟ عَنْهُمْ فَإِن تَرْضَوْا۟ عَنْهُمْ فَإِنَّ ٱللَّهَ لَا يَرْضَىٰ عَنِ ٱلْقَوْمِ ٱلْفَٰسِقِينَ

   They will swear to you that you may be pleased with them; but if you are pleased with them, yet surely Allah is not pleased with the transgressing people.
   

9. 9:107 وَٱلَّذِينَ ٱتَّخَذُوا۟ مَسْجِدًا ضِرَارًا وَكُفْرًا وَتَفْرِيقًۢا بَيْنَ ٱلْمُؤْمِنِينَ وَإِرْصَادًا لِّمَنْ حَارَبَ ٱللَّهَ وَرَسُولَهُۥ مِن قَبْلُ وَلَيَحْلِفُنَّ إِنْ أَرَدْنَآ إِلَّا ٱلْحُسْنَىٰ وَٱللَّهُ يَشْهَدُ إِنَّهُمْ لَكَٰذِبُونَ

   And those who built a masjid to cause harm and for unbelief and to cause disunion among the believers and an ambush to him who made war against Allah and His Messenger before; and they will certainly swear: We did not desire aught but good; and Allah bears witness that they are most surely liars.
   

10. 58:14 أَلَمْ تَرَ إِلَى ٱلَّذِينَ تَوَلَّوْا۟ قَوْمًا غَضِبَ ٱللَّهُ عَلَيْهِم مَّا هُم مِّنكُمْ وَلَا مِنْهُمْ وَيَحْلِفُونَ عَلَى ٱلْكَذِبِ وَهُمْ يَعْلَمُونَ

    Have you not seen those who befriend a people with whom Allah is wroth? They are neither of you nor of them, and they swear falsely while they know.
    

11. 58:18 يَوْمَ يَبْعَثُهُمُ ٱللَّهُ جَمِيعًا فَيَحْلِفُونَ لَهُۥ كَمَا يَحْلِفُونَ لَكُمْ وَيَحْسَبُونَ أَنَّهُمْ عَلَىٰ شَىْءٍ أَلَآ إِنَّهُمْ هُمُ ٱلْكَٰذِبُونَ

    On the day that Allah will raise them up all, then they will swear to Him as they swear to you, and they think that they have something; now surely they are the liars.
    

12. 68:10 وَلَا تُطِعْ كُلَّ حَلَّافٍ مَّهِينٍ

    And yield not to any mean swearer