On the authority of Ubayy ibn Ka‘b, that the Prophet, peace and blessings be upon him, said: "Indeed, some poetry contains wisdom."(1)

5011 — Musaddad narrated to us, Abu ‘Awanah narrated to us, from Simak, from ‘Ikrimah, from Ibn ‘Abbas, who said: A Bedouin came to the Prophet, peace and blessings be upon him, and began speaking, whereupon the Messenger of Allah, peace and blessings be upon him, said: "Indeed, some eloquence is sorcery, and indeed, some poetry contains wisdom."(2)

--------------------------------------------
(1) A sound hadith. Yunus: he is Ibn Yazid al-Ayli, and Marwan ibn al-Hakam: he is Ibn Abi al-‘As ibn Umayyah, the cousin of ‘Uthman ibn ‘Affan, and he assumed the caliphate.
It was also recorded by Ibn Majah (3755) via the route of Abu Usamah, from ‘Abdullah ibn al-Mubarak, with this chain of transmission.
It was also recorded by al-Bukhari (6145) via the route of Shu‘ayb ibn Abi Hamzah, from al-Zuhri, with it.
It is found in the "Musnad of Ahmad" (21154) and (21158). His saying: "Indeed, some poetry contains wisdom": the "some" here is partitive, meaning that poetry has no bearing on what is good or bad; the criterion is rather the meanings themselves, not whether the speech is prose or verse, for these are merely two modes of conveying meaning and two paths to it. If the meaning is good and wise, then that poetry is wisdom; and if it is vile, then that poetry is likewise vile. Poetry is only censured religiously on the basis that it is often praise of those who do not deserve it, and other such matters. For this reason, when Allah, exalted is He, said: {And the poets — the misguided follow them} [al-Shu‘ara’: 224], He praised those among them by His saying: {Except those who believe and do righteous deeds} [al-Shu‘ara’: 227]. This was stated by al-Sindi in his "Gloss on Sunan Ibn Majah."

(2) A sound hadith by virtue of what precedes it, and by what has already been recorded by the compiler from the hadith of Ibn ‘Umar (5007). This chain contains Simak — he is Ibn Harb — and although he is truthful and his hadith is good, there is some disorder in his narration from ‘Ikrimah — who is the freed slave of Ibn ‘Abbas — while the rest of its narrators are trustworthy. Abu ‘Awanah: he is Waddah ibn ‘Abdullah al-Yashkuri.
It was also recorded by al-Tirmidhi (3058) from Qutaybah ibn Sa‘id, from Abu ‘Awanah, with this chain of transmission, and he said: This is a good and sound hadith.
It was also recorded by Ibn Majah (3756) via the route of Za’idah ibn Qudamah, from Simak, with it. =