Arabic (Original)
حَدَّثَنَا أَسْوَدُ بْنُ عَامِرٍ حَدَّثَنَا شَرِيكٌ عَنْ أَبِي إِسْحَاقَ عَنِ الْمُهَلَّبِ بْنِ أَبِي صُفْرَةَ عَنْ رَجُلٍ مِنْ أَصْحَابِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ عَنْ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ مَا أُرَاهُمْ اللَّيْلَةَ إِلَّا سَيُبَيِّتُونَكُمْ فَإِنْ فَعَلُوا فَشِعَارُكُمْ حم لَا يُنْصَرُونَ.
English Translation
Aswad ibn Amir told us, Sharik told us, from Abu Ishaq, from al-Muhallab ibn Abi Sufrah, from a man among the Companions of the Prophet, peace and blessings be upon him, from the Prophet, peace and blessings be upon him, who said, "I do not think they will do anything tonight except attack you by night; if they do, then your rallying cry shall be 'Ha Mim, they will not be helped.'"