"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." (Using translation from Ibn Mājah 49)
"إِنَّ الله تَعَالى لَا يَقْبَلُ لِصَاحب بِدْعَةٍ صَوْمًا، وَلَا صَلاةً، وَلَا صَدَقَةً، وَلَا حَجًا، وَلَا عُمْرَةً وَلَا جهَادًا، وَلَا صَرْفًا ، وَلَا عَدْلًا حتَّى يَخْرُجَ مَنَ الإسْلام كما تَخْرُجُ الشَّعْرَةُ مِنَ الْعَجِينِ".