He was known as a music producer. But he was a responsible person who was as concerned with the place where he worked as he was with his job. They were on their way to Rumeli Hisarı with the singer who was going to give a concert. The arranger was in her own mood as the young singer was excited about the moment she would appear before the audience:

-Let me tell you something? Have you ever thought about the history of Rumeli Hisarı, where we are going to sing right now?

-Yoo?… It's a singing venue… All my dream was to perform there. I got it because of you.

-You're going to scream as much as you can on stage, right?

-What do you mean, master? Can you speak clearly? Take out that bean in your mouth…

-Look, girl, I was researching the Citadel before I came yesterday. I got some historical information. Do you know what this Citadel used to be? It was a dungeon. Yes a dungeon…

-I can't believe it… Is it serious?

-Yes… Prisoners were kept in dungeons in Rumeli Hisarı. And who knows how many laments and tears flowed from these dungeons against the Bosphorus you see?

-Believe me, I felt weird… Most of all, I feel sorry for the oppressed…

-This Ottoman was an interesting nation indeed…

-Now, what does this have to do with the Ottoman Empire?

-Like this… The state maintains the rule of law and puts the guilty in jail.

-So?

-But the people of the same state are establishing foundations to have these prisoners read the Qur'an and pray for them to be saved and have children as soon as possible. The music producer was saying one last thing as he shifted gears:

-You know, there are animal lovers nowadays… They don't know either.

-What?

Es Seyyid Hacı Mustafa Foundation, which was established in Rumeli Hisarı district and this foundation; stipulate that fresh bread will be bought every day and fed to stray animals…

-Is that the foundation that gives bread to street animals?… Hah ha ha…

-Don't laugh, girl… here are the notes I kept in the glove box… Open and read. The singer girl pulled the torpedo fall… She took the notes she had compiled from the curious arranger's source…

He began to read in a low voice: “Haji Mustafa, son of Haci Mustafa, the owner of the foundation: descendant of the Prophet, namely es-Sayyid; al-Hajj… Establishment, Hijri 1238 ( Gregorian 1778 )…”