Sheikh Abdur-Razzaq al-Badr حفظه الله mentioned a beautiful narration on the topic of bidah.
He said that there is an authentic narration from Saeed Ibn ul-Musayyab-may Allah have mercy on him- who saw a person praying supererogatory prayers after the fajr prayer and he prohibited the man from doing so. The man said “O Aba Muhammad! Is Allah going to punish me for praying?!” He replied:”No, but He will punish you for opposing the Sunnah.”
The Sheikh mentioned this benefit yesterday (12/08/1437- 19/05/2016) in the Haram during his explanation of question 17 from Imam Si’dee’s book “سؤال و جواب في أهم المهمات”
[Saeed Ibn ul-Musayyab died in 94H. He was from the most senior tabi’een]
Yasar A Rahman