"In AH 631 he invaded Malwah (Madhya Pradesh, India), and after suppressing the rebels of that place, he destroyed that idol-temple which had existed there for the past three hundred years. Next he turned towards Ujjain (Madhya Pradesh, India) and conquered it, and after demolishing the idol-temple of Mahakal, he uprooted the statue of Bikramajit together with all other statues and images which were placed on pedestals, and brought them to the capital where they were laid before the Jami Masjid for being trodden under foot by the people." --- The historian Yahya Ammad bin Abdullah Sirhindi in his book "Tarikh-i-Mubarak Shahi" describing the Jihadi acts of Sultan Shamsu'd-Din Iltutmish (AD 1210-1236) in India
"The Sultan reached Jhain (Rajasthan, India) in the afternoon of the third day and stayed in the palace of the Raya.. The idols he saw amazed him .. Next day he got those idols of gold smashed with stones. Two idols were made of brass, one of which weighed nearly thousand "mans". He got both of them broken, and the pieces were distributed among his people so that they may throw them at the door of Masjid on their return to Delhi." - The famous historian Amir Khusru in his book "Mifathu'l-Futuh" about the Jihadi spoils of Sultan Jajalu'd-Din Khalji (AD 1290-1296) in India
"In the Muslim community, the holy war is a religious duty, because of the universalism of the Muslim mission and (the obligation to) convert everybody to Islam either by persuasion or by force."