ENOfficial
‘Arfaja told that he heard God’s Messenger say, “Various corruptions will arise, so strike with the sword him who tries to cause separation in this people when they are united, whoever he be.” Muslim transmitted it.
Source: sunnah.com
Other translations
Arabic
وَعَنْ عَرْفَجَةَ قَالَ: سَمِعْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَقُولُ: «إِنَّهُ سَيَكُونُ هَنَاتٌ وَهَنَاتٌ فَمَنْ أَرَادَ أَنْ يُفَرِّقَ أَمْرَ هَذِهِ الْأُمَّةِ وَهِيَ جَمِيعٌ فَاضْرِبُوهُ بِالسَّيْفِ كَائِنًا مَنْ كانَ» . رَوَاهُ مُسلم
sunnah.com