Sahih Muslim
Sahih Muslim 1742 d
It is recommended to pray for victory when meeting the enemy
Arabic hadith text
وَحَدَّثَنَاهُ إِسْحَاقُ بْنُ إِبْرَاهِيمَ، وَابْنُ أَبِي عُمَرَ، جَمِيعًا عَنِ ابْنِ عُيَيْنَةَ، عَنْ إِسْمَاعِيلَ، بِهَذَا الإِسْنَادِ وَزَادَ ابْنُ أَبِي عُمَرَ فِي رِوَايَتِهِ " مُجْرِيَ السَّحَابِ
Translation
This hadith has been narrated on the authority of Ibn 'Uyaina through another chain of transmitters (who added the words)" the Disperser of clouds" in his narration.