• رِهَٰن
• رَهِين
• رَهِينَة

Appears 3 times in the Quran.

1. 2:283 وَإِن كُنتُمْ عَلَىٰ سَفَرٍ وَلَمْ تَجِدُوا۟ كَاتِبًا فَرِهَٰنٌ مَّقْبُوضَةٌ فَإِنْ أَمِنَ بَعْضُكُم بَعْضًا فَلْيُؤَدِّ ٱلَّذِى ٱؤْتُمِنَ أَمَٰنَتَهُۥ وَلْيَتَّقِ ٱللَّهَ رَبَّهُۥ وَلَا تَكْتُمُوا۟ ٱلشَّهَٰدَةَ وَمَن يَكْتُمْهَا فَإِنَّهُۥٓ ءَاثِمٌ قَلْبُهُۥ وَٱللَّهُ بِمَا تَعْمَلُونَ عَلِيمٌ

   And if you are upon a journey and you do not find a scribe, then (there may be) a security taken into possession; but if one of you trusts another, then he who is trusted should deliver his trust, and let him be careful (of his duty to) Allah, his Lord; and do not conceal testimony, and whoever conceals it, his heart is surely sinful; and Allah knows what you do.
   

2. 52:21 وَٱلَّذِينَ ءَامَنُوا۟ وَٱتَّبَعَتْهُمْ ذُرِّيَّتُهُم بِإِيمَٰنٍ أَلْحَقْنَا بِهِمْ ذُرِّيَّتَهُمْ وَمَآ أَلَتْنَٰهُم مِّنْ عَمَلِهِم مِّن شَىْءٍ كُلُّ ٱمْرِئٍۭ بِمَا كَسَبَ رَهِينٌ

   And (as for) those who believe and their offspring follow them in faith, We will unite with them their offspring and We will not diminish to them aught of their work; every man is responsible for what he shall have wrought.
   

3. 74:38 كُلُّ نَفْسٍۭ بِمَا كَسَبَتْ رَهِينَةٌ

   Every soul is held in pledge for what it earns,