Those Who Oppose the Sunnah

Here is a SaHeeH (Authentic) hadeeth about the status of those who oppose / contradict / disagree with the Sunnah of the Prophet Muhammad (صلى الله عليه وآله وسلم).

(Taken from my personal copy of al-Barqī’s al-MaHāsin (Qum: al-Majma` al-`ālamī li-Ahl al-Bayt, 2^nd Edition, 1416, vol. 1, pg. 347, hadeeth # 125 [723])

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عنه عن يعقوب بن يزيد عن محمد بن أبي عمير عن مرازم بن حكيم قال سمعت أبا عبد الله ع يقول من خالف سنة محمد فقد كفر

From Maraazim bin Hukaym said, I heard Abaa `Abd Allaah (عليه السلام) say: “Whoever opposes the sunnah of Muhammad (صلى الله عليه وآله وسلم), has certainly disbelieved”

Source:

1.     Al-Barqī, al-MaHāsin (Qum: Dār al-Kutub al-Islāmiyyah, 2^nd ed., 1371 AH), vol. 1, ch. 11, pg. 220, hadeeth # 126