While Joseph and Avdol were fighting with Mariah, Jotaro gets concerned that they haven't shown up yet, and goes to look for them around Luxor. Then, Polnareff senses someone following them and confronts the man.
So you are a Stand user!
أنتَ مستخدم ستاند إذاً
Du bist also ein Stand-Nutzer!
¡Sabía que eras un usuario de Stand!
¡Sabía que eras un usuario de Stand!
Tu es donc bien
un détenteur de Stand !
Allora sei un portatore di Stand!
Então você é mesmo 
um usuário de Stand!