ENOfficial
Salama b. al-Akwa' reported God’s Messenger as saying, “He who draws a sword against us does not belong to us.” Muslim transmitted it.
Source: sunnah.com
Other translations
Arabic
وَعَنْ سَلَمَةَ بْنِ الْأَكْوَعِ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «مَنْ سَلَّ علينا السَّيفَ فليسَ منَّا» . رَوَاهُ مُسلم
sunnah.com