2 verses have
عَيْنَانِ
in Edition Uthmani / Ar-Rahmaan (The Beneficent)

50:55فِيهِمَا عَيْنَانِ تَجْرِيَانِ

66:55فِيهِمَا عَيْنَانِ نَضَّاخَتَانِ