132087
In Islamic writings , her name is thus often prefixed by the title " Mother of the Believers " ( Arabic : أمّ المؤمنين umm al - mu ' min īn ) , per the description of Muhammad 's wives in the Qur ' an .
 Muhammad
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Muhammad