Tazkīyah (تزكية, تُزَكِّيهِمْ )

Cleanse

خُذْ مِنْ أَمْوَالِهِمْ صَدَقَةً تُطَهِّرُهُمْ وَتُزَكِّيهِمْ بِهَا وَصَلِّ عَلَيْهِمْ ۖ إِنَّ صَلَاتَكَ سَكَنٌ لَهُمْ ۗ وَاللَّهُ سَمِيعٌ عَلِيمٌ {103}

Take charity from their wealth, you will cleanse them and purify them by it, and pray Salat upon them. Surely your Salat would be a tranquillity for them, and Allah is Hearing, Knowing [9:103]