No that is not what Islam teaches, its once you deliver the message its upto God's guidance for that person to revert to Islam or not.

he already said "Who ever Allah guides non can misguide and who ever he allows to go stray non can guide" .

Poverty is not for the sake of hardship. No, it is there because nothing exists but God. Poverty unlocks the door -- what a blessed key!

- Jalaluddin al-Rumi