Are there any Ahadith that indicate that recitation of Surah Muzammil will cause prosperity or happiness?

This Hadith has been classified as a fabrication by the masters of Hadith
though it has been mentioned by some Mufassireen (commentators of the Qur'
aan). See al-Kaafi shaaf of Haafiz ibn Hajar (RA)

and Allah Ta'ala Knows Best

Moulana Muhammad ibn Moulana Haroon Abbassommar
FACULTY OF SPECIALTY IN HADITH

CHECKED AND APPROVED: Mufti Ebrahim Desai