Chapter 2, Verse 226, The Cow
سُوۡرَةُ البَقَرَة
لِّلَّذِينَ يُؤۡلُونَ مِن نِّسَآئِهِمۡ تَرَبُّصُ أَرۡبَعَةِ أَشۡهُرٖۖ فَإِن فَآءُو فَإِنَّ ٱللَّهَ غَفُورٞ رَّحِيمٞ
Those who take an oath not to have sexual relation with their wives must wait four months, then if they return (change their idea in this period), verily, Allah is Oft-Forgiving, Most Merciful.
Chapter 12, Verse 66, Joseph
سورة يوسف
قَالَ لَنۡ أُرۡسِلَهُۥ مَعَكُمۡ حَتَّىٰ تُؤۡتُونِ مَوۡثِقٗا مِّنَ ٱللَّهِ لَتَأۡتُنَّنِي بِهِۦٓ إِلَّآ أَن يُحَاطَ بِكُمۡۖ فَلَمَّآ ءَاتَوۡهُ مَوۡثِقَهُمۡ قَالَ ٱللَّهُ عَلَىٰ مَا نَقُولُ وَكِيلٞ
He [Ya'qub (Jacob)] said: "I will not send him with you until you swear a solemn oath to me in Allah's Name, that you will bring him back to me unless you are yourselves surrounded (by enemies, etc.)," And when they had sworn their solemn oath, he said: "Allah is the Witness over what we have said."
Chapter 35, Verse 42, Originator
سورة فاطر
وَأَقۡسَمُواْ بِٱللَّهِ جَهۡدَ أَيۡمَٰنِهِمۡ لَئِن جَآءَهُمۡ نَذِيرٞ لَّيَكُونُنَّ أَهۡدَىٰ مِنۡ إِحۡدَى ٱلۡأُمَمِۖ فَلَمَّا جَآءَهُمۡ نَذِيرٞ مَّا زَادَهُمۡ إِلَّا نُفُورًا
And they swore by Allah their most binding oath, that if a warner came to them, they would be more guided than any of the nations (before them), yet when a warner (Muhammad ﷺ) came to them, it increased in them nothing but flight (from the truth),
Chapter 38, Verse 44, Sad
سورة ص
وَخُذۡ بِيَدِكَ ضِغۡثٗا فَٱضۡرِب بِّهِۦ وَلَا تَحۡنَثۡۗ إِنَّا وَجَدۡنَٰهُ صَابِرٗاۚ نِّعۡمَ ٱلۡعَبۡدُ إِنَّهُۥٓ أَوَّابٞ
"And take in your hand a bundle of thin grass and strike therewith (your wife), and break not your oath. Truly! We found him patient. How excellent (a) slave! Verily, he was ever oft-returning in repentance (to Us)!
Chapter 56, Verse 76, The Event, The Inevitable
سورة الواقعة
وَإِنَّهُۥ لَقَسَمٞ لَّوۡ تَعۡلَمُونَ عَظِيمٌ
And verily, that is indeed a great oath, if you but know.