Muhammad Saleh is well known as the court chronicler during Shah Jahan's reign, and his Aml-e-Salih or Shahjahanama is one of the most important original sources of Shahjahani events, and considered "proof of the author's great literary attainments and skill as writer of Persian poetry and prose." The mosque is said to date from 1070/1659 - 1079/1668-69 and is also known as the Chinianwali Masjid because of the extraordinary mosaic tile work (kashi kari) for which the reign of Shah Jahan was famous. Although it was completed during Aurangzeb's reign, but the usual Shahajahani features—multifoil arches, stalactite squinches, delicately executed floral arabesque and interlacement in kashi and fresco—are in evidence. Not surprising since it was constructed under the supervision of Shah Jahan's court historian. The mosque, small in size, based on a single-aisle 3-bay arrangement, is approachable through steps, and is surmounted by three domes. Because of space restriction instead of a permanent one there is a small removable pulpit which is stored away after the sermon. Its brick lined courtyard offsets the scintillating mosaic tilework on the east facade of the mosque to advantage. It is located in the Mochi Gate area of the walled city.