Surah At-Tawbah 9:103

خُذْ مِنْ أَمْوَٰلِهِمْ صَدَقَةً تُطَهِّرُهُمْ وَتُزَكِّيهِم بِهَا وَصَلِّ عَلَيْهِمْ ۖ إِنَّ صَلَوٰتَكَ سَكَنٌ لَّهُمْ ۗ وَٱللَّهُ سَمِيعٌ عَلِيمٌ

Take, [O Muḥammad], from their wealth a charity by which you purify them and cause them increase, and invoke [Allāh's blessings] upon them. Indeed, your invocations are reassurance for them. And Allāh is Hearing and Knowing.

Translation: Saheeh International

Tafsir

Take of their wealth some alms to purify them and to cleanse them thereby of their sins; he thus took a third of their wealth and gave it away as charity; and pray for them that is supplicate for them; …

Excerpt from Tafsir al-Jalalayn, commentary on 9:103, via Quran.com. The reader has the full commentary and 9 more tafsirs.