كتاب الجهاد
Read the English translation first, with the original Arabic directly underneath.
It was narrated from ‘Uqbah bin ‘Amir Al-Juhani that the Messenger of Allah (ﷺ) said:
“May Allah have mercy on the one who keeps watch over the troops.”
رَحِمَ اللَّهُ حَارِسَ الْحَرَسِ