(8) باب نَقْضِ الأَحْكَامِ الْبَاطِلَةِ وَرَدِّ مُحْدَثَاتِ الأُمُورِ
'A'isha reported Allah's Messenger (ﷺ) as saying:
He who innovates things in our affairs for which there is no valid (reason) (commits sin) and these are to be rejected. (ID)
Reference (ID): Sahih Muslim 1718 a (ID)
In-book reference (ID): Book 30, Hadith 23 (ID)
USC-MSA web (English) reference(deprecated numbering scheme): Book 18, Hadith 4266 (ID)