Surat ash-Shu'ara', 177-180

When Jethro said to them, ‘Will you not fear? I am a faithful Messenger to you. So have fear of Allah and obey me. I do not ask you for any wage for it. My wage is the responsibility of no one but the Lord of all the worlds. (Surat ash-Shu‘ara’, 177-180)
 
“Jethro” means “little division”. A little division in a large society. It’s also the name of Hazrat Mahdi (pbuh). A little division. People always abstain from materialistic and self-seeking people, this is mentioned here. And also the Messengers always  say “I don’t have any benefit. I am telling for Allah.”