´Aishah narrated that:` The Messenger of Allah (ﷺ) said: "Whoever innovates something in this matter of ours (i.e. Islam) that is not part of it, will have it rejected."
Hadith ReferenceSunan Ibn Majah / The Book of the Sunnah / Hadith: 14
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:بخاري ومسلم