Broker who offered an apartment for sale

Levi approached Reuven and said that Shimon wants to rent out his apartment, and Reuven replied that he is interested. After about a week, Reuven approached Levi and said that he prefers to 'buy' the apartment and asked Levi to mediate between him and Shimon. Shimon decisively said that he is not interested in selling but only in renting, and Levi conveyed this answer to Reuven, thus ending Levi's part. A few days later, Reuven approached Shimon again regarding buying the apartment and was refused, and after some more time, he approached him again, and then Shimon agreed to sell the apartment to Reuven. In the end, from the day Levi told Shimon that Reuven wants to buy the apartment, a contract was closed between Shimon and Reuven for the sale of the apartment. It is important to note that the 'idea' to buy the apartment came from Reuven. The question is whether Levi is entitled to receive brokerage fees since he 'revealed' to Reuven that there is an apartment available for rent, and only because of this did Reuven decide to buy it, and also because he approached Shimon on behalf of Reuven [although the approach was not positively answered at the time].

Hello 

Levi is not entitled to brokerage fees for the sale. 

According to the instructions of the Gaon, Rabbi Ovadia Fried, shlita