Chapter 1: The Book of the Sunnah
It was narrated that Hudhaifah said: "The Messenger of Allah (ﷺ) said: 'Allah will not accept any fasting, prayer, charity, Hajj, 'Umrah, Jihad, or any other obligatory or voluntary action from a person who follows innovation (Bid' ah). He comes out of Islam like a hair pulled out of dough."
Sunan Ibn Majah 49