What does « Seal on the heart » mean in the Quran?
Discover the meaning of the word Seal on the heart (رين) in the Quran, with 1 verse in which it appears, and a detailed explanation from Al-Raghib al-Asfahani's Mufradat fi gharib al-Qur'an.
رين
Seal on the heart
Root: ر - ن
Quranic language 1 verse
Updated on 29 May 2026 at 7:00 AM
📖 1 min read
Definition of Seal on the heart
Al-rayn: rust covering a bright thing.
Allah says: 'No, but rust (râna) has covered their hearts' (Al-Mutaffifîn: 14).
Sins accumulate rust on hearts preventing them from seeing truth.