>> Read more trending news
Kasyouhanan said that Bing told Marotta to go sit in her car and he’d be out to pump her gas for her. He then gave the clerk $20 to fill Marotta’s tank.
She had told Bing that her husband died in 2015 and was struggling financially, CNN reported.
"I say God must have sent him there for me," Marotta told WXYZ.
Kasyouhanan said this isn’t the first time Marotta used spare change to pay for small tanks of gas.
"I thought to myself, what if that was my mother and I wasn't around to support my mom?," Kasyouhanan told CNN.
Kasyouhanan is also doing his part to help Marotta. He set up a GoFundMe page for donations. He had set a $5,000 goal. In three days since launching the fundraiser, it has earned more than $15,000.