Al-Kāfi - Volume 5 > Chapter 9(c)
Hadith #1

1- مُحَمَّدُ بْنُ يَحْيَى عَنْ أَحْمَدَ بْنِ مُحَمَّدِ بْنِ عِيسَى عَنِ ابْنِ مَحْبُوبٍ عَنِ الْحَسَنِ بْنِ صَالِحٍ عَنْ أَبِي عَبْدِ اللهِ (عَلَيْهِ السَّلام) قَالَ كَانَ يَقُولُ مَنْ فَرَّ مِنْ رَجُلَيْنِ فِي الْقِتَالِ مِنَ الزَّحْفِ فَقَدْ فَرَّ وَمَنْ فَرَّ مِنْ ثَلاثَةٍ فِي الْقِتَالِ مِنَ الزَّحْفِ فَلَمْ يَفِرَّ.

1. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad ibn ‘Isa from ibn Mahbub from al-Hassan ibn Salih who has said the following: “Abu ‘Abd Allah, ‘Alayhi al-Salam, would say, ‘If one, when advancing against the enemy after facing two men, flees, he is considered fleeing; however one who in such condition on facing three men flees, he is not considered fleeing. 5 ”