«إِذَا اِلْتَقَوْا فَاقْتَتَلُوا فَإِنَّمَا اَلصَّلاَةُ حِينَئِذٍ تَكْبِيرٌ وَ إِذَا كَانُوا وُقُوفاً لاَ يَقْدِرُونَ عَلَى اَلْجَمَاعَةِ فَالصَّلاَةُ إِيمَاءٌ.
Hadith.1349 - Sama’a ibn Mehran asked him (Abu Abdullah (as)) about the prayer during battle. Imam (as) said: "When they meet and engage in fighting, the prayer at that time is performed with takbir (proclamation of 'Allahu Akbar'). If they are standing and unable to form a congregation, then the prayer is performed wi