Mishkat al-Masabih
Mishkat al-Masabih 140
Arabic hadith text
عَنْ عَائِشَةَ قَالَتْ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «مَنْ أَحْدَثَ فِي أَمْرِنَا هَذَا مَا لَيْسَ مِنْهُ فَهُوَ رد»
Translation
ʿĀʾisha reported that the Messenger of God said, ‘Whoever introduces into this affair of ours something that does not belong to it, it is rejected.’