Chapter 50
Remembrance 3 from Chapter 50
Encouragement to do dhikr of Allah after the ṣalāh of ṣubḥ
Arabic
Romanisation
Allāhumma bika uḥāwil, wa bika uṣāwil, wa bika uqātil.
Context
And we relate from Ṣuhayb 
who said: “The Messenger of Allah 
used to move his lips to say something after the ṣalāh of Fajr. I asked: ‘O Messenger of Allah, what is this that you are saying?’ He replied: ‘O Allah, by You I strive, by You I conquer, and by You I do battle.’” [5].
References
[5] Al-Futūḥāt (3/71) and Ibn as-Sunnī (115), who states that this hadith is ḥasan owing to its supporting narrations.