Tariq ibn Shihab reported that the first man to deliver the sermon before the salah was Marwan. A man stood up and said to Marwan, “You have contravened the Sunnah.” He replied, ‘O so-and-so, what you search for is abandoned.” Abu Sa’eed (RA) said, “As for him, indeed, he did what was due of him. I had heard Allah’s Messenger say: If anyone sees a wrong, he must prevent it with his hand. But, if he is not able then with his tongue, and if he is unable then with his heart and that is the weakest (degree of) faith.”
[Muslim 49]
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