Mohammad was devout and free from the vices of his time. He pictured the end of the world and the day of judgement as near at hand. With his thoughts fixed on the hereafter, he implored his Meccan compatriots to revere the Lord of the Universe, and condemned violence, injustice, hedonism, and neglect of the poor. Like Jesus, he was full of compassion. After the move to Madina, however, he became a relentless warrior, intent on spreading his religion by the sword, and a scheming founder of a state. A Messiah was transformed into a David. A man who had lived for more than twenty years with one wife became inordinately fond of women.
He pictured the end of the world and the day of judgement as near at hand
There is a hadith about this, before he dies he says the world will end in 70 years I think. Or the next generation won't live. But I wonder what sources does Dashti use for this statement?