Abdullah ibn Mas’ud reported: The Messenger of Allah, peace and blessings be upon him, said, “The hairsplitters have been ruined.” The Prophet said it three times.
Source: Ṣaḥīḥ Muslim 2670
Grade: Sahih (authentic) according to Muslim
عَنْ عَبْدِ اللَّهِ قَالَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ هَلَكَ الْمُتَنَطِّعُونَ قَالَهَا ثَلَاثًا
2670 صحيح مسلم كتاب العلم باب هلك المتنطعون