Sayyidina Abu Musa Ash’ary reported that he heard from Allah’s Messenger —‘ that the gates of paradise are under the shadow of swords. So, a man of shabby, tattered appearance asked, “Did you hear this from Allah’s Messenger (SAW) ?“ He said, “Yes’ So, he returned to his friends and offered them hissalaam (greetings), broke the scabbard of his sword and struck (the enemy) with it till he was killed.
[Ahmed 19555, Muslim 1902]