ReqÃÂÿ () is one of the six scripts of Arabic calligraphy used primarily for letters, edicts, or manuscripts. Reqa'<nowiki/> was used for private correspondence on small papers or for nonreligious books and texts. Ibn al-Nadim mentioned in Al-Fihrist that the inventor of Reqaÿ was al-Fadl ibn Sahl. This script was one of the most popular scripts in the Ottoman Empire. Reqaÿ was gradually simplified by other calligraphers, and was changed into a form called Ruqÿah () or Riqÿah (), which is now the most common handwriting script in the Arab world.