Hadith report, the scale of the report's transmission, the routes through which the report was transmitted, and the individual narrators involved in its transmission. On the basis of these criteria, various classifications were devised for hadith. The earliest comprehensive work in hadith studies was Abu Muhammad al-Ramahurmuzi's "al-Muhaddith al-Fasil", while another significant work was al-Hakim al-Naysaburi's "Ma‘rifat ‘ulum al-hadith". Ibn al-Salah's "ʻUlum al-hadith" is considered the standard classical reference on hadith studies. By means of hadith terminology, hadith are categorized as "ṣaḥīḥ" (sound, authentic), "ḍaʿīf" (weak), or "mawḍūʿ" (fabricated). Other classifications used also include: "ḥasan" (good), which refers to an otherwise
Hadith Bayad wa Riyad is catalogued as Codex Vat. Arabo 368. Hadith Bayad wa Riyad Hadith Bayāḍ wa Riyāḍ (, "The Narrative 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