Surah Al-Humazah 104:1

وَيْلٌ لِّكُلِّ هُمَزَةٍ لُّمَزَةٍ

Woe to every scorner and mocker

Translation: Saheeh International

Tafsir

Woe waylun an expression implying chastisement to every backbiter who is a slanderer frequently engaging in backbiting and slander that is to say defamation — this was revealed regarding those who slandered the Prophet s and the believers the likes of Umayya b. Khalaf al-Walīd b. al-Mughīra and others —

Excerpt from Tafsir al-Jalalayn, commentary on 104:1, via Quran.com. The reader has the full commentary and 9 more tafsirs.