Another subject occasioned a long series of verses, namely his feud with his rival Jarir and his tribe the Bani Kulaib. These poems are published as the "Nakaid of Jarir and al-Farazdaq". Al-Farazdaq became official poet to the Umayyad caliph Al-Walid I (reigned 705–715), to whom he dedicated a number of panegyrics. He is most famous for the poem that he gave in Makkah when Ali bin Hussain bin Ali bin Abu Talib (Zayn al-Abidin) entered the Haram of the Kaba angering the emir. The poem is extremely powerful. It is because of this poem that he was imprisoned.