كتاب الجهاد
19  
Jihad
(5b)
Chapter: Fighting in Jihad - Section 2
(4)
باب القتال في الجهاد - الفصل الثاني
Mishkat al-Masabih 3948
Al-Muhallab reported God’s Messenger as saying, “If the enemy attacks you at night let your war-cry be Ha’ Mim'. They will not be helped’.”* *These words may be taken from sura 41 which is one beginning with Ha Mim. The other words are in verse 16 of that sura. Cf. 44: 41. Tirmidhi and Abu Dawud transmitted it.
وَعَن الْمُهلب أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: " إِنْ بَيَّتَكُمُ الْعَدُوُّ فَلْيَكُنْ شِعَارُكُمْ: حم لَا ينْصرُونَ ". رَوَاهُ التِّرْمِذِيّ وَأَبُو دَاوُد
  لم تتمّ دراسته   (الألباني) حكم   :
Reference : Mishkat al-Masabih 3948
In-book reference : Book 19, Hadith 160