The Prophet ﷺ said, "No one should tell tales of admonition except a ruler, one appointed by a ruler, or a pretentious show-off."
عن النبي ﷺ قال: لا يقص إلا أمير، أو مأمور، أو متكلف.
Tabarani reported it in Mujam al-Kabir - as Ibn Kathir transmitted it from him in Jami al-Masanid wal-Sunan (4991) - from Ahmad bin Abdul-Wahhab bin Najda Hawti, who said, Abu Mughira (that is, Abdullah bin Hajjaj) narrated to us, Ismail bin Ayyash narrated to us, from Thalaba bin Muslim, from Abu Imran Ansari, from Ubada bin Samit, and he mentioned it.Its chain is hasan because of Thalaba bin Muslim. A group narrated from him, no one criticized him, and Ibn Hibban mentioned him among the trustworthy narrators. The hadith has a firmly established basis, and Haythami also graded it hasan, saying, "Tabarani reported it in Mujam al-Kabir, and its chain is hasan."I say, I was not able to locate the chain of this hadith except in Jami al-Masanid wal-Sunan, because the hadith of Ubada bin Samit is not found in the printed Mujam al-Kabir.On this subject there is also a report from Abdul-Jabbar Khawlani, who said, a man from among the companions of the Prophet ﷺ entered, and there was Kaab telling stories. He asked, "Who is this?" They said, "Kaab telling stories." He said, "I heard the Messenger of Allah ﷺ say, 'No one should tell stories except a commander, someone commanded to do so, or a boastful person.'" He said, this reached Kaab, and after that he was never seen telling stories again.Ahmad reported it (18050) from Yazid bin Harun, who said, Awwam informed us, Abdul-Jabbar Khawlani narrated to us, and he mentioned it.In its chain is Abdul-Jabbar Khawlani, who belongs to the Followers. Ibn Hibban mentioned him among the trustworthy narrators, but he did not mention anyone who narrated from him besides Awwam bin Hawshab. He is therefore "unknown," or "acceptable" according to the terminology of Ibn Hajar.