Al-Mu'jam al-Awsat 4067 — I heard Abdullah bin Abi Maryam

Jahm bin Aws (may Allah have mercy on him) narrates: I heard Abdullah bin Abi Maryam (may Allah have mercy on him) when Abdullah bin Rustum passed by him in his mounted procession and said to Ibn Abi Maryam: "I greatly long to sit with you and hear you speak." When he had gone past, Ibn Abi Maryam said: I heard Sayyiduna Abu Hurayrah (may Allah be pleased with him) say that the Messenger of Allah (peace and blessings be upon him) said: "Do not envy a wicked person for the blessings he has, for you do not know what fate he will meet after his death. Indeed, with Allah there is a killer appointed for him that will never die."
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from Abdullah bin Abi Maryam except Jahm bin Aws, and Ibn al-Mubarak is alone in narrating it from him."