This hadeeth comes under the following chapter: THE MERIT OF ARCHERY AND INDUCING OTHERS TO LEARN IT AND DENUNCIATION OF ONE WHO LEARNT THE ART AND THEN NEGLECTED IT
It has been narrated on the authority of Ibn Amir who said: I heard the Messenger of Allaah (sallAllaahu alayhi wa sallam) 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.