وَمَنْ لَمْ يَجِدْ مَا يُزِيلُ بِهِ النَّجَاسَةَ صَلَّى مَعَهَا، وَلَمْ يُعِدْ
Translation: Whoever has nothing with which to remove the impurity prays with it, and does not repeat the prayer.
This is a ruling of genuine inability: the person has no usable means of removing the impurity. Prayer should be offered within its time despite that inability.
The explicit phrase “does not repeat it” means the prayer need not be repeated after means of purification later become available, provided the inability was real.