عَنْ عَائِشَةَ رَضِيَ اللَّهُ عَنْهَا ، قَالَتْ : قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ : مَنْ أَحْدَثَ فِي أَمْرِنَا هَذَا مَا لَيْسَ فِيهِ فَهُوَ رَدٌّ(بُخاری : ۲۶۹۷)
Translation
Hazrat Aisha Siddiqa (may Allah be pleased with her) said that the Messenger of Allah (peace and blessings of Allah be upon him) said: "Whoever introduces any such thing into our religion on their own which was not in it, then it is rejected."