President Donald Trump on Friday defended his son’s recent wedding party being partially bankrolled by a Russian oligarch, but also said he’d been told the money would be paid back.

“It’s totally allowed. And a lot of people have parties and all,” Trump told reporters in the Oval Office, before adding, “But, as I understand it, he paid them back.” He also said, “I hear he paid them back” without elaborating.

ProPublica first reported this week that Umar Kremlev, who has close ties to Russian President Vladimir Putin, helped pay to rent a private island and for a fireworks show when Donald Trump Jr. and socialite Bettina Anderson were married in the Bahamas in May.