• ٱمْتَحَنَ
• ٱمْتَحِنُوهُنَّ

Appears 2 times in the Quran.

1. 49:3 إِنَّ ٱلَّذِينَ يَغُضُّونَ أَصْوَٰتَهُمْ عِندَ رَسُولِ ٱللَّهِ أُو۟لَٰٓئِكَ ٱلَّذِينَ ٱمْتَحَنَ ٱللَّهُ قُلُوبَهُمْ لِلتَّقْوَىٰ لَهُم مَّغْفِرَةٌ وَأَجْرٌ عَظِيمٌ

   Surely those who lower their voices before Allah's Messenger are they whose hearts Allah has proved for guarding (against evil); they shall have forgiveness and a great reward.
   

2. 60:10 يَٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوٓا۟ إِذَا جَآءَكُمُ ٱلْمُؤْمِنَٰتُ مُهَٰجِرَٰتٍ فَٱمْتَحِنُوهُنَّ ٱللَّهُ أَعْلَمُ بِإِيمَٰنِهِنَّ فَإِنْ عَلِمْتُمُوهُنَّ مُؤْمِنَٰتٍ فَلَا تَرْجِعُوهُنَّ إِلَى ٱلْكُفَّارِ لَا هُنَّ حِلٌّ لَّهُمْ وَلَا هُمْ يَحِلُّونَ لَهُنَّ وَءَاتُوهُم مَّآ أَنفَقُوا۟ وَلَا جُنَاحَ عَلَيْكُمْ أَن تَنكِحُوهُنَّ إِذَآ ءَاتَيْتُمُوهُنَّ أُجُورَهُنَّ وَلَا تُمْسِكُوا۟ بِعِصَمِ ٱلْكَوَافِرِ وَسْـَٔلُوا۟ مَآ أَنفَقْتُمْ وَلْيَسْـَٔلُوا۟ مَآ أَنفَقُوا۟ ذَٰلِكُمْ حُكْمُ ٱللَّهِ يَحْكُمُ بَيْنَكُمْ وَٱللَّهُ عَلِيمٌ حَكِيمٌ

   O you who believe! when believing women come to you flying, then examine them; Allah knows best their faith; then if you find them to be believing women, do not send them back to the unbelievers, neither are these (women) lawful for them, nor are those (men) lawful for them, and give them what they have spent; and no blame attaches to you in marrying them when you give them their dowries; and hold not to the ties of marriage of unbelieving women, and ask for what you have spent, and kt them ask for what they have spent. That is Allah's judgment; He judges between you, and Allah is Knowing, Wise.