ومن وصيّته (عليه السلام) لعسكره قبل لقاء العدوبصفّين
لاَ تُقَاتِلُوهُمْ حَتَّى يَبْدَأُوكُمْ، فَإِنَّكُمْ بِحَمْدِ اللهِ عَلَى حُجَّة، وَتَرْكُكُمْ إِيَّاهُمْ حَتَّى يَبْدَأُوكُمْ حُجَّةٌ أُخْرَى لَكُمْ عَلَيْهِمْ، فَإذَا كَانَتِ الْهَزِيمَةُ بِإذْنِ اللهِ فَلاَ تَقْتُلُوا مُدْبِراً، وَلاَ تُصيِبُوا مُعْوِراً، وَلاَ تُجْهِزُوا عَلَى جَرِيح،لاَ تَهِيجُوا
النِّسَاءَ بِأَذىً، وَإِنْ شَتَمْنَ أَعْرَاضَكُمْ، وَسَبَبْنَ أُمَرَاءَكُمْ، فَإِنَّهُنَّ ضَعِيفَاتُ الْقُوَى وَالاَْنْفُسِ وَالْعُقُولِ، إِنْ كُنَّا لَنُؤْمَرُ بِالْكَفِّ عَنْهُنَّ وَإِنَّهُنَّ لَمُشْرِكَاتٌ، وَإِنْ كَانَ الرَّجُلُ لَيَتَنَاوَلُ الْمَرْأَةَ فِي الْجَاهِلِيَّةِ بِالْفِهْرِ أَوِ الْهِرَاوَةِ فَيُعَيَّرُ بِهَا وَعَقِبُهُ مِنْ بَعْدِهِ.
[ At Siffin Imam Ali (a) gave the following instructions to his soldiers before the battle. ]
Do not take the initiative in fighting, let them begin it. It is because by the Favour of Allah you are on the side of truth and justice. Leave them until they begin their hostilities and then you are at liberty to take to fighting. Their keenness to begin a battle will be another proof of your sincere belief in the orders of Allah .
If Allah favours you with success and inflicts defeat to the enemy, then do not attack those who have surrendered, do not injure the disabled and weak, do not assault the wounded, do not excite women and do not make them angry with rude behaviour even if they use harsh and insulting words against your commander and officers because they are physically and mentally weak and get excited easily and frightened quickly.
During the days of the Holy Prophet (peace of Allah be upon him and his descendants) we had strict orders not to touch, molest or insult women though they were unbelievers. Even in pre-Islamic days it was the custom that if a man struck a woman even with a stick or a stone, the revenge had to be taken by his sons and descendants.