كتاب الإمارة
33  
The Book on Government
(52)
Chapter: The virtue of Shooting and Encouragement to learn it, and criticism of the one who learns it and then forgets it
(52)
باب فَضْلِ الرَّمْىِ وَالْحَثِّ عَلَيْهِ وَذَمِّ مَنْ عَلِمَهُ ثُمَّ نَسِيَهُ ‏‏
Sahih Muslim 1917

It has been narrated on the authority of Ibn Amir who said:

I heard the Messenger of Allah (ﷺ) say-and he was delivering a sermon from the pulpit: Prepare to meet them with as much strength as you can afford. Beware, strength consists in archery. Beware, strength consists in archery. Beware, strength consists in archery.
حَدَّثَنَا هَارُونُ بْنُ مَعْرُوفٍ، أَخْبَرَنَا ابْنُ وَهْبٍ، أَخْبَرَنِي عَمْرُو بْنُ الْحَارِثِ، عَنْ أَبِي عَلِيٍّ، ثُمَامَةَ بْنِ شُفَىٍّ أَنَّهُ سَمِعَ عُقْبَةَ بْنَ عَامِرٍ، يَقُولُ سَمِعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم وَهُوَ عَلَى الْمِنْبَرِ يَقُولُ ‏ "‏ وَأَعِدُّوا لَهُمْ مَا اسْتَطَعْتُمْ مِنْ قُوَّةٍ أَلاَ إِنَّ الْقُوَّةَ الرَّمْىُ أَلاَ إِنَّ الْقُوَّةَ الرَّمْىُ أَلاَ إِنَّ الْقُوَّةَ الرَّمْىُ ‏"
Reference : Sahih Muslim 1917
In-book reference : Book 33, Hadith 241
USC-MSA web (English) reference : Book 20, Hadith 4711
  (deprecated numbering scheme)