It wasnarrated that 'Ali bin Abi Talib said:
"When Mughirah binShu'bahfought alongside the Prophet (ﷺ) he would carry a spear, andwhenhe would come back he would throw his spear down so that someonewould pick it up and give it back to him." 'Ali said to him: "Iwilltell the Messenger of Allah (ﷺ) about that." He (the Prophet(ﷺ))said: "Do not do that, for it you do that it will not bepicked up asa lost item to be returned." (FR)
English reference (FR): Vol. 4, Book 24, Hadith 2809 (FR)
Arabic reference (FR): Book 24, Hadith 2916 (FR)