It has been reported by 'Abdul Rahman bin Shamasa that Fuqaim al- Lakhmi said to Uqba bin Amir: You frequent between these two targets and you are an old man, so you will be finding it very hard. 'Uqba said: But for a thing I heard from the Holy Prophet (ﷺ) , I would not strain myself. Harith (one of the narrators in the chain of transmitters) said: I asked Ibn Shamasa: What was that? He said that he (the Holy Prophet) said: Who learnt archery and then gave it up is not from us. or he has been guilty of disobedience (to Allah's Apostle) (ﷺ) .
Benefits and Issues: From this hadith, it is understood that to acquire training in weaponry for warfare and then to neglect it is a very grave offense.
Source: Tuhfat al-Muslim: Commentary on Sahih Muslim, Page: 4949
´It was narrated that ‘Uqbah bin ‘Amir Al-Juhani said:` “I heard the Messenger of Allah (ﷺ) say: ‘Whoever learns how to shoot (arrows) then abandons it, has disobeyed me.’”
Maulana Ataullah Sajid
Benefit: After receiving training in weaponry, one should continue to practice with it so that proficiency in its use is maintained and no difficulty arises at the time of jihad.
Source: Commentary on Sunan Ibn Mājah by Mawlānā ‘Atā’ullāh Sājid, Page: 2814