Ibn Ezra's most successful work was the "Kitab al-Muḥaḍarah wal-Mudhakarah", a treatise on rhetoric and poetry written about the "Adab" writings of the Arabs. It is the only work of its kind in Hebrew literature. It was written at the request of a friend who had addressed to him eight questions on Hebrew poetry, and is divided into a corresponding number of chapters. In the first four chapters Ibn Ezra writes generally of prose and prose-writers, of poetry and poets, and of the natural poetic gift of the Arabs, which he attributes to the climate of Arabia. He concludes the fourth chapter with the statement that, with very rare exceptions, the poetical parts of the Bible have neither meter nor rhyme.