Imam Al-Shafi'i, the 8th-century Islamic jurist and founder of the Shafi'i school of jurisprudence, visited Sanaa several times. He praised the city, writing ''La budda min Ṣanʻāʼ'', or "Sanaa must be seen." In the 9th–10th centuries, the Yemeni geographer al-Hamdani took note of the city's cleanliness, saying "The least dwelling there has a well or two, a garden and long cesspits separate from each other, empty of ordure, without smell or evil smells, because of the hard concrete (adobe and cob, probably) and fine pastureland and clean places to walk." Later in the 10th-century, the Persian geographer Ibn Rustah wrote of Sanaa "It is the city of Yemen — there cannot be found ... a city greater, more populous or more prosperous, of nobler origin or with more delicious food than it."