Surah Maryam 19:1
كٓهيعٓصٓ
Kāf, Hā, Yā, ʿAyn, Ṣād.
Translation: Saheeh International
Tafsir
Kāf hā yā ‘ayn sād God knows best what He means by these letters.
Excerpt from Tafsir al-Jalalayn, commentary on 19:1, via Quran.com. The reader has the full commentary and 9 more tafsirs.