Complex sentence: For some Muslim historians, it was unwilling and a throwing away of lives, but states Arvind Sharma--a professor of Comparative Religion, Amir Khusrau described it as "no doubt magical and superstitious, nevertheless they are heroic".
Split into simpler sentences: For some Muslim historians, it was unwilling and a throwing away of lives. But Arvind Sharma, a professor of Comparative Religion, states that Amir Khusrau described it as "no doubt magical and superstitious; nevertheless they are heroic".