• أُسَرِّحْكُنَّ
• تَسْرَحُونَ
• تَسْرِيح
• سَرَاح
• سَرِّحُوهُنَّ

Appears 5 times in the Quran.

1. 2:229 ٱلطَّلَٰقُ مَرَّتَانِ فَإِمْسَاكٌۢ بِمَعْرُوفٍ أَوْ تَسْرِيحٌۢ بِإِحْسَٰنٍ وَلَا يَحِلُّ لَكُمْ أَن تَأْخُذُوا۟ مِمَّآ ءَاتَيْتُمُوهُنَّ شَيْـًٔا إِلَّآ أَن يَخَافَآ أَلَّا يُقِيمَا حُدُودَ ٱللَّهِ فَإِنْ خِفْتُمْ أَلَّا يُقِيمَا حُدُودَ ٱللَّهِ فَلَا جُنَاحَ عَلَيْهِمَا فِيمَا ٱفْتَدَتْ بِهِۦ تِلْكَ حُدُودُ ٱللَّهِ فَلَا تَعْتَدُوهَا وَمَن يَتَعَدَّ حُدُودَ ٱللَّهِ فَأُو۟لَٰٓئِكَ هُمُ ٱلظَّٰلِمُونَ

   Divorce may be (pronounced) twice, then keep (them) in good fellowship or let (them) go with kindness; and it is not lawful for you to take any part of what you have given them, unless both fear that they cannot keep within the limits of Allah; then if you fear that they cannot keep within the limits of Allah, there is no blame on them for what she gives up to become free thereby. These are the limits of Allah, so do not exceed them and whoever exceeds the limits of Allah these it is that are the unjust.
   

2. 2:231 وَإِذَا طَلَّقْتُمُ ٱلنِّسَآءَ فَبَلَغْنَ أَجَلَهُنَّ فَأَمْسِكُوهُنَّ بِمَعْرُوفٍ أَوْ سَرِّحُوهُنَّ بِمَعْرُوفٍ وَلَا تُمْسِكُوهُنَّ ضِرَارًا لِّتَعْتَدُوا۟ وَمَن يَفْعَلْ ذَٰلِكَ فَقَدْ ظَلَمَ نَفْسَهُۥ وَلَا تَتَّخِذُوٓا۟ ءَايَٰتِ ٱللَّهِ هُزُوًا وَٱذْكُرُوا۟ نِعْمَتَ ٱللَّهِ عَلَيْكُمْ وَمَآ أَنزَلَ عَلَيْكُم مِّنَ ٱلْكِتَٰبِ وَٱلْحِكْمَةِ يَعِظُكُم بِهِۦ وَٱتَّقُوا۟ ٱللَّهَ وَٱعْلَمُوٓا۟ أَنَّ ٱللَّهَ بِكُلِّ شَىْءٍ عَلِيمٌ

   And when you divorce women and they reach their prescribed time, then either retain them in good fellowship or set them free with liberality, and do not retain them for injury, so that you exceed the limits, and whoever does this, he indeed is unjust to his own soul; and do not take Allah's communications for a mockery, and remember the favor of Allah upon you, and that which He has revealed to you of the Book and the Wisdom, admonishing you thereby; and be careful (of your duty to) Allah, and know that Allah is the Knower of all things.
   

3. 16:6 وَلَكُمْ فِيهَا جَمَالٌ حِينَ تُرِيحُونَ وَحِينَ تَسْرَحُونَ

   And there is beauty in them for you when you drive them back (to home), and when you send them forth (to pasture).
   

4. 33:28 يَٰٓأَيُّهَا ٱلنَّبِىُّ قُل لِّأَزْوَٰجِكَ إِن كُنتُنَّ تُرِدْنَ ٱلْحَيَوٰةَ ٱلدُّنْيَا وَزِينَتَهَا فَتَعَالَيْنَ أُمَتِّعْكُنَّ وَأُسَرِّحْكُنَّ سَرَاحًا جَمِيلًا

   O Prophet! say to your wives: If you desire this world's life and its adornment, then come, I will give you a provision and allow you to depart a goodly departing
   

5. 33:49 يَٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوٓا۟ إِذَا نَكَحْتُمُ ٱلْمُؤْمِنَٰتِ ثُمَّ طَلَّقْتُمُوهُنَّ مِن قَبْلِ أَن تَمَسُّوهُنَّ فَمَا لَكُمْ عَلَيْهِنَّ مِنْ عِدَّةٍ تَعْتَدُّونَهَا فَمَتِّعُوهُنَّ وَسَرِّحُوهُنَّ سَرَاحًا جَمِيلًا

   O you who believe! when you marry the believing women, then divorce them before you touch them, you have in their case no term which you should reckon; so make some provision for them and send them forth a goodly sending forth.