properties to it. In 1124, no other information about the Arslan Khan madrasa, which was restored in Bukhara, has survived except for the fact that it existed. Joyboriy Abdurahimhoja rebuilt this educational institution and restored the previous foundation properties. Researchers such as O. A. Sukhareva, N. Yoldoshev, H. Kurbanov expressed their opinion that the Kalabod madrasa used to be the Arslankhan Madrasah. Kalabad Madrasah is one of the oldest higher education institutions in the world. A. K. Jumanazar compares the general situation with the situation in Europe and writes the following: . According to M. A. Abbasova-Yusupova, the last restored building of the madrasa was built in the last 1/3 of the 16th century (between 1566–1599) and was completed in 1608-1609. The activity of the madrasa was stopped after the Bukhara revolution of 1920. The madrasa building was used as a prison in the 1930s, and later as a residence belonging to the municipal utility. In the early 1950s, it was still intact but neglected. It was destroyed in 1953. The bricks were first made by K.Y. Voroshilov and were used in the construction of Bukhara School No. 5, which was later named after A. S. Makarenko. Currently, the courtyards are standing in place of the madrasa building. Waqf document and property There are 3 copies of the waqf document of the madrasa. At the top of the document is written "Kalabod Madrasa and Abdurahimhoja Descendants Foundation". It mentions: The Waqf document was drawn up in Shawwal 1017 Hijri (April-May 1608) and formalized on the 13th day of Jumad ul-Akhir 1018 (September 14, 1609). The later date is recorded in almost all copies of foundation documents. The original copy of the document has the almond-shaped seal of the Uzbek ruler Vali Muhammad (1605-1611). According to O. D. Chekhovych, the original foundation document of the Kalabad Madrasah did not mention either the Arslan Khan Madrasah or the villages and gardens belonging to its foundation properties. A. K. Jumanazar, while getting acquainted with the foundation documents of the Kalabad madrasa, informs that Abdurahimhoja, when he was formalizing his foundation, presented the complete foundation of the Arslan Khan madrasa before him, and it was found in 2 copies that the scientist saw, and it was called the Khan madrasa. "There is no reason to say that the Kalabad madrasa used to be the Arslan Khan madrasa". The waqf donates its inherited land in