79353
On the advice of Umar and Abu Ubaidah ibn al-Jarrah , he agreed to draw a salary from the state treasury and discontinue his cloth trade .
 Umar, Abu Ubaidah ibn al-Jarrah
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Umar, Abu Ubaidah ibn al-Jarrah