"The mosque at Sambhal was constructed in 1526 by Babur's General, Mir Hindu Beg. It was the largest built in the Delhi region since Timur's sack of the city in 1398... The choice of Sambhal was noteworthy. According to Hindu tradition... the last incarnation of Vishnu would appear in Sambhal at the end of the era... While recording this tradition of the Kalki avatar, Abul Fazl was careful not to divulge that the Hari temple had been destroyed and a mosque constructed at the site with its debris... The use of temple material in the Sambhal mosque is evident in the internal architecture of the building (e.g. two rosettes on stone slabs leading from the eastern gateway to the quadrangle; the chain for hanging the temple bell, and a passage at the back for the performance of parikarma by worshippers, are still visible.)"