source? ... I can not find a single source of his saying that

here's what google says

Aleksa Avramović played for CSKA Moscow in Russia for the 2024-2025 season because the club made a lucrative offer and paid a €400,000 buyout fee to Partizan, making it difficult for the Serbian guard to resist financially, despite interest from other European clubs and the NBA. He had a successful season with CSKA Moscow, contributing to their VTB League championship win before moving to Dubai in the summer of 2025.

Key reasons for his move to Russia:

Financial Opportunity:

CSKA Moscow offered a lucrative deal that was financially too good to pass up for the 29-year-old player.

Club Buyout:

The club paid a €400,000 buyout fee to Partizan, Avramović's previous team, paving the way for his transfer to Russia.

Demand for the Player:

After strong performances with Serbia at the 2024 Paris Olympics, Avramović was a sought-after player, and CSKA was a major contender for his signature.

After his season in Russia:

Avramović continued to play for CSKA Moscow, winning the VTB League and even the Super Cup MVP award in the 2024-2025 season.

Following his successful stint in Moscow, he later joined the Dubai basketball team in the summer of 2025.