Complex Khast Imam (or Khazrati Imam). It is located in the old district of Tashkent - Sebzar. This is the largest religious center, the heart of Muslim Tashkent, a truly majestic historical and architectural monument of the spiritual heritage of Uzbekistan. Its founder was the first preacher of Islam in Central Asia, Kaffall al-Shashi, who was born at the beginning of the last millennium and studied spirituality in the most famous madrasahs. He repeatedly visited Mecca, many sacred places in different places, and for his vast store of knowledge he was awarded the title of the Great Imam of the Arab world. Returning to his homeland, he put all his efforts to establish Islam and Sharia here.

After his death, the place where he was buried was considered sacred. Lines of pilgrims were drawn here and in the 16th century a mausoleum was built over his grave, which became a place of shelter for wanderers. The crypt in its original form has practically not survived. Now it is a portal mausoleum - a khanaka with an asymmetric dome.

The building of the mausoleum of Kaffall Shashi is directed upwards and raised to a high platform. It includes a large cruciform hall and hujra-cells located in the pylons. The entrance portal is turned to the north and is decorated with a pestak, faced with majolica. The blue dome in the form of a rectangular prism, erected on a high drum, gives a special monumentality and grandeur.
A huge stream of believers flocks here in order to touch the saint's grave, which is located in the western part of the mazar.

Over time, a whole complex of buildings of spiritual culture was formed near the holy place. On Khast-Imam Square, you can see the Barak-Khan Madrasah, built by Uglubek's grandson, Suyunij-Khan, the Tilla-Sheikh Mosque and the Islamic Institute, which trains future imams. The institute was founded in early 1971 and it was the very first of the institutes where Islam was taught. It also houses a library of oriental manuscripts.

Much attention was paid to the landscape design of the complex. Experienced specialists were invited, many exotic trees, shrubs, flowers, as well as storks, which freely roam the territory of the complex in spring and summer, as well as in autumn, were brought.

Students do not study in the building of the historical madrasah; there are workshops of folk art in its hujras. Here you can find workshops for calligraphy, wood carving, embossing and other types of folk crafts.

In the 21st century, the Namazgokh mosque was built on the territory of the complex. It currently houses the Imam al-Bukhari Islamic Institute. The complex includes an extensive library of the Spiritual Administration, where more than thirty thousand books are kept, the main value of which is the Koran of Osman with drops of his blood, because he was killed while reading this particular book. The complex is completed by a Friday mosque decorated with turquoise domes and 56-meter minarets soaring upward. And, although the Jami mosque was built in a more modern style, it is made in the best traditions of Central Asian architecture and is successfully combined with the entire architectural ensemble.