Surah Fussilat 41:7
ٱلَّذِينَ لَا يُؤْتُونَ ٱلزَّكَوٰةَ وَهُم بِٱلْـَٔاخِرَةِ هُمْ كَـٰفِرُونَ
Those who do not give zakāh, and in the Hereafter they are disbelievers.
Translation: Saheeh International
Tafsir
who do not pay the alms and who are disbelievers in the Hereafter the repetition of hum ‘they’ is for emphasis.
Excerpt from Tafsir al-Jalalayn, commentary on 41:7, via Quran.com. The reader has the full commentary and 9 more tafsirs.