"“When Qutbu’d-Din, the commander-in-chief of Muizzu’d-Din Sam alias Shihabu’d-Din Ghuri, conquered Delhi in AH 587 corresponding to AD 1191 corresponding to 1248 Bikarmi, this idol-house (of Rai Pithora) was converted into a mosque. The idol was taken out of the temple. Some of the images sculptured on walls or doors or pillars were effaced completely, some were defaced. But the structure of the idol-house kept standing as before. Materials from twenty-seven temples, which were worth five crores and forty lakhs of Dilwals, were used in the mosque, and an inscription giving the date of conquest and his own name was installed on the eastern gate…“When Malwah and Ujjain were conquered by Sultan Shamsu’d-Din in AH 631 corresponding to AD 1233, then the idol-house of Mahakal was demolished and its idols as well as the statue of Raja Bikramajit were brought to Delhi, they were strewn in front of the door of the mosque…”“In books of history, this mosque has been described as Masjid-i-Adinah and Jama‘ Masjid Delhi, but Masjid Quwwat al-Islam is mentioned nowhere. It is not known as to when this name was adopted. Obviously, it seems that when this idol-house was captured, and the mosque constructed, it was named Quwwat al-Islam…”"