The deception of Ahl al-Bid'ah
Imām Sa'īd b. al-Musayyib رحمه الله once saw a man praying more than two rak'ah after sunrise, the beginning of fajr, making many bows and prostrations, and so he forbade him.
That man said, “O Abu Muhammad, is Allāh going to punish me for praying?”
Sa'īd said, “No, but He will punish you for contradicting the Sunnah.”
al-Bayhaqī رحمه الله, As-Sunan al-Kubrā 2:466 graded sahih by al-Albani. See Irwā al-Ghalīl 2:236
Brief biography on the scholar:
Ibn al-Musayyib, was a senior Tābi'ee [successor of the Sahabas], born in Umar's Khilāfah & married Abū Huraira's daughter [رضي الله عنه]
Shaykh al-Albani رحمه الله writes:
This is one of the superb answers given by Sa'īd b. al-Musayyib رحمه الله. It is a strong weapon against heretics [innovators] who recommend many different types of religious innovation in the name of them being dhikr and prayer. They then criticize the followers of the Sunnah for criticizing them, and accuse them of censuring dhikr and prayer, when in fact [Ahl al-Sunnah-Salafīs] are only criticizing the contravertion of the Sunnah in matters such as dhikr and prayer.