Step 1: Understanding the Question:
The question asks to report the words spoken by Narshahwaj Khan to Amar Singh.
Step 2: Locating the Information in the Passage:
The passage contains a direct quote of what Narshahwaj Khan said.
The text says: 'He said to him, 'Amar Singh, you saved my life. I am a Pathan named Narshahwaj Khan. I will shed my blood for you and your family, if needed.''
Step 3: Final Answer:
The answer can be directly taken from the quoted text in the passage, which contains his thanks, his identity, and his solemn promise of loyalty.