The embattled head of an Osaka school operator at the center of a murky real estate deal gave sworn testimony in the Diet on Thursday that he received a ¥1 million donation in Prime Minister Shinzo Abe's name to help fund a nationalist elementary school he was building.

In the nationally televised appearance, Yasunori Kagoike, head of Moritomo Gakuen, gave testimony in both chambers of the Diet to shed light on his alleged ties with Abe and his wife, Akie.

Kagoike repeated claims that he accepted an envelope containing ¥1 million in cash from Akie Abe on Sept. 5, 2015, when she was invited to deliver a speech at Moritomo's Tsukamoto Kindergarten. Kagoike testified under oath, meaning any attempt to falsify his statements could bring perjury charges.