Mishkat al-Masabih 19 Jihad كتاب الجهاد 73

عَن عُقْبَةَ بْنِ عَامِرٍ قَالَ: سَمِعْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ وَهُوَ عَلَى الْمِنْبَرِ يَقُول: ” (وَأَعدُّوا لَهُ مَا استطَعْتُمْ منْ قُوَّةٍ) أَلَا إِنَّ الْقُوَّةَ الرَّمْيُ أَلَا إِنَّ الْقُوَّةَ الرَّمْيُ أَلَا إِنَّ الْقُوَّةَ الرَّمْيُ) رَوَاهُ مُسْلِمٌ

‘Uqba b. ‘Amir told that he heard God’s Messenger say when he was on the pulpit, “Prepare for them as much strength as you can. Strength is shooting; strength is shooting; strength is shooting.” Muslim transmitted it.