Allāhumma Anta Rabbunā wa Rabbuhum, wa qulūbunā wa qulūbuhum bi-yadik, wa innamā yaghlibuhum Ant.
Context
We relate in the book of Ibn as-Sunnī from Jābir ibn ‘Abdullāh who related that the Messenger of Allah said on the Day of Ḥunayn: “Do not wish to meet the enemy, for you do not know what you will be tried with on their account. When you meet them say: ‘O Allah, You are our Lord and their Lord; our hearts and their hearts are in Your hand. Only You can overcome them.’” [11].
who related that the Messenger of Allah 
said on the Day of Ḥunayn: “Do not wish to meet the enemy, for you do not know what you will be tried with on their account. When you meet them say: ‘O Allah, You are our Lord and their Lord; our hearts and their hearts are in Your hand. Only You can overcome them.’” [11].