Hadith Bayad wa Riyad

Hadith Bayāḍ wa Riyāḍ (Arabic: حديث بياض ورياض‎‎, Qissat Bayad wa Riyad or The Story of Bayad and Riyad) is a 13th-century Arabic love story. The main characters of the tale are Bayad, a merchant's son and a foreigner from Damascus, Riyad, a well-educated girl in the court of an unnamed Hajib (vizier or minister) of 'Iraq (Mesopotamia) and a "Lady" (al-sayyida).

The Hadith Bayad wa Riyad manuscript is believed to be the only illustrated manuscript known to have survived from the more than eight centuries of Muslim medieval life in Spain and Portugal. The sole manuscript is in the Vatican Library, where it is catalogued as Codex Vat. Arabo 368.