Jami` at-Tirmidhi 1659

Narrated Abu Bakr bin Abi Musa Al-Ash'ari: "I heard my father saying in the presence of the enemy: 'The Messenger of Allah (ﷺ) said: "Indeed, the gates of Paradise are under the shadows of the swords.'" A man among the people with ragged appearance said: 'Have you heard what you mentioned from the Messenger of Allah (ﷺ) ?' He said: 'Yes.' So he returned to his comrades and bid them Salam (farewell), broke the sheath of his sword, and began fighting with it until he was killed." [Abu 'Eisa said:] This Hadith is Sahih Gharib. We do not know it except as a narration of Ja'far bin Sulaiman [Ad-Dubai']. (One of the narrators) Abu 'Imran Al-Jawni's name is 'Abdul Malik bin Habib. As for Abu Bakr bin Abi Musa, Ahmad bin Hanbal said: "That is his name