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Khuza’ah at once sent a delegation to Medina to inform the Islamic prophet , Muhammad , of this breach of truce and to seek help from Muslims of Medina being their allies .
 Medina, Muhammad, Medina
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Medina, Muhammad, Medina