What Has Been Related About Code Words
باب مَا جَاءَ فِي الشِّعَارِ
Jami` at-Tirmidhi, Book of Jihad(view book)
Jami` at-Tirmidhi 1682
Narrated Al-Muhallab bin Abi Sufrah:
From one who heard the Prophet ﷺ saying: "If you suffer a surprise attack from the enemy then say: 'Ha Min, they will not be victorious.'"
[Abu 'Eisa said:] There is something on this topic from Salamah bin Al-Akwa'. This is how some of them reported it from Abu Ishaq, the same as the narration of Ath-Thawri. And it has been reported from him, from Al-Muhallab bin Abi Sufrah from the Prophet ﷺ in Mursal form.
حَدَّثَنَا مَحْمُودُ بْنُ غَيْلاَنَ، حَدَّثَنَا وَكِيعٌ، حَدَّثَنَا سُفْيَانُ، عَنْ أَبِي إِسْحَاقَ، عَنِ الْمُهَلَّبِ بْنِ أَبِي صُفْرَةَ، عَمَّنْ سَمِعَ النَّبِيَّ ﷺ يَقُولُ " إِنْ بَيَّتَكُمُ الْعَدُوُّ فَقُولُوا: حم لاَ يُنْصَرُونَ " .
قَالَ أَبُو عِيسَى وَفِي الْبَابِ عَنْ سَلَمَةَ بْنِ الأَكْوَعِ . وَهَكَذَا رَوَى بَعْضُهُمْ عَنْ أَبِي إِسْحَاقَ مِثْلَ رِوَايَةِ الثَّوْرِيِّ وَرُوِيَ عَنْهُ عَنِ الْمُهَلَّبِ بْنِ أَبِي صُفْرَةَ عَنِ النَّبِيِّ ﷺ مُرْسَلاً .