with plundering Lahore. According to Minhaj al-Siraj, the Khokhars were hostile to Muslims and use to "torment every "Musalman they captured". Muhammad of Ghor, thus, marched from Firuzkuh in December 1205 for his last campaign to subjugate the Khokhars. The Khokhars led by Bakan and Sarkha offered a battle somewhere between the Chenab and Jhelum rivers and fought valiantly until the afternoon but Muhammad carried the day after Illtutmish arrived with a reserve contingent, whom Muhammad earlier stationed on the banks of Jhelum. Muhammad of Ghor followed his victory by a large scale slaughter of the Khokhars. His armies also burnt down the forests where many of them took refuge while fleeing. Iltutmish was rewarded for his gallantry against the Khokhars with a presentation of special robe of honour from Muhammad of Ghor. According to Minhaj, he also manumitted Illtutmish, despite the fact that his master Aibak who purchased him originally was still a slave along with other senior slaves of Muhammad who were not manumitted until that point. Assassination After crushing the Khokhars, on his way back to his capital in Ghazna, Muhammad of Ghor's caravan rested at Dhamiak near Sohawa (which is near the city of Jhelum in the Punjab province of modern-day Pakistan) where he was assassinated on March 15, 1206, by the Ismāʿīlī emissaries. According to some sketchy accounts regarding the identity of Muhammad's assassins, claimed that the assassins were sent by Alauddin Shah of Khwarezm. However, the Khwarezmians already curbed the Ghurid ambition in Transoxiana after the Andkhud debacle and were not facing any potential danger from them. Hence, historian Mohammad Habib theorizes that this speculation that the Ismaili assassins were sent by the Khwarezmian Shah is unlikely to be correct. Muhammad's assassins were probably sent by the Imam of Alamut whose castle he sacked during the Khurasan expedition. Some later accounts possibly with the genesis in the writing of Ferishta claimed that his assassins were Hindu Khokhars. In "Tarikh-i-Firishta", he stated that "Twenty Khokhar infidels" who were cowed down by him earlier attacked his carvan and stabbed him with a "dagger". However, this account is not corroborated by the earlier authorities. Minhaj al-Siraj, Hasan Nizami and Shams ad-Dīn adh-Dhahabi all contemporary or near contemporary accounts confirmed that Muhammad was assassinated by a "Heretic devote" ("fida-i-mulahida"). The story of his assassination by the Khokhars is probably an invention of later times based on indirect evidences.