Władysław Teofil Bartoszewski made the appeal a day after Orban accused Polish Prime Minister Donald Tusk of "playing a dangerous game" and endangering Europeans' security with his remarks on Ukraine.
Speaking to broadcaster Radio Zet, Bartoszewski said Orban was "financing this war by buying Russian oil," and noted that only two EU members, Hungary and Slovakia, were still doing so.
"Please stop this. The Russians will not be able to continue the war without money," he said.
Orban on Tuesday said on X: "Dear Donald Tusk, You may think that you are at war with Russia, but Hungary is not. Neither is the European Union. You are playing a dangerous game with the lives and security of millions of Europeans. This is very bad!"
Tusk told the Warsaw Security Forum on Monday that the conflict in Ukraine is "also our war" and warned that a defeat for Kyiv would have lasting consequences beyond the current generation.
"This war is also our war," Tusk said. "It is not about whether someone loves Ukraine, or whether their history with Ukraine has been good or bad. This is a question of security and of the very survival of European civilisation."
Orban, who has long resisted deeper EU support for Ukraine, has argued the war is already decided in Moscow’s favour.
In an interview this week, he said Western plans to send large numbers of troops to Ukraine would risk a world war—a step he insisted "nobody wants," Polish state news agency PAP reported.
(gs)
Source: IAR, PAP/PAP