Final answer:
The information provided does not include details about Salabat Khan being beheaded. The historical figure Saladin is mentioned, who died of natural causes and was not beheaded.
Step-by-step explanation:
The question about who beheaded Salabat Khan in battle is not answered by the provided information. It is also important to note that the provided historical events do not mention Salabat Khan. However, a historical figure named Saladin is mentioned. Saladin was a famous Muslim military leader who recaptured Jerusalem from the Crusaders in 1187 after the Battle of Hattin. Saladin was not beheaded; he died of natural causes in 1193. Thus, the question might be based on a confusion between historical figures or events. It's crucial to cross-reference historical details when studying complex periods like the Mongol invasions and the Crusades.