Yazid ibn Harun narrated to us, al-Jurayri informed us, from Abu al-‘Ala’, from Abu Muslim al-Judhami, from al-Jarud, who said: I said, or a man said: O Messenger of Allah, what about a lost item we find? He said: "Announce it, do not conceal it, and do not hide it. If you find its owner, give it to him; otherwise, it is the property of Allah, He gives it to whomever He wills."
Hadith Referenceمسند احمد / مسند الأنصار رضي الله عنهم / 24009/70
Hadith Gradingحکم دارالسلام:حديث حسن، وهذا إسناد ضعيف، الجريري مختلط، ورواية يزيد بن هارون عنه بعد الاختلاط، لكنه توبع
Narrated to us by Muhammad ibn Ja'far, narrated to us by Shu'bah, from Qatadah, from Abu Muslim, from Al-Jarud ibn Al-Mu'alla, that the Messenger of Allah, peace and blessings be upon him, said: "The lost property of a Muslim is the burning coals of the Fire."
Hadith Referenceمسند احمد / مسند الأنصار رضي الله عنهم / 24009/71