Which Surah of the Holy Quran is known as the ‘Heart of the Quran’ (Qalb-ul-Quran)?

Explanation

Surah Yaseen (36th chapter of the Quran) is widely known as the ‘Heart of the Quran’ based on prophetic traditions emphasizing its spiritual weight and core teachings on Tawheed, Risalat, and Resurrection. For comparison, Surah Ar-Rahman is called ‘Uroos-ul-Quran’ (Bride of the Quran), and Surah Al-Baqarah is the longest Surah.