• يُنزَفُونَ
• يُنزِفُونَ

Appears 2 times in the Quran.

1. 37:47 لَا فِيهَا غَوْلٌ وَلَا هُمْ عَنْهَا يُنزَفُونَ

   There shall be no trouble in it, nor shall they be exhausted therewith.
   

2. 56:19 لَّا يُصَدَّعُونَ عَنْهَا وَلَا يُنزِفُونَ

   They shall not be affected with headache thereby, nor shall they get exhausted,