[Machine] The Prophet ﷺ was heard saying, "If you are attacked, let your slogan be 'They will not be victorious.'" This is narrated by Zuhair ibn Mu'awiya from Abu Ishaq. Zuhair ibn Mu'awiya followed this on the condition of Al-Bukhari and Muslim.
سَمِعَ النَّبِيَّ ﷺ يَقُولُ إِنْ بُيِّتُّمْ فَلْيَكُنْ شِعَارُكُمْ حم لَا يُنْصَرُونَ «وَهَكَذَا رَوَاهُ زُهَيْرُ بْنُ مُعَاوِيَةَ عَنْ أَبِي إِسْحَاقَ» تابعه زهير بن معاوية على شرط البخاري ومسلم