My father (ra) narrated to us. He said: Muhammad b. Yahya al-`Attar narrated to us from Sahl b. Ziyad al-Adami from `Ali b. al-Hakam from Hammad b. `Abdullah from Abi Basir from al-Sadiq Ja`far b. Muhammad (as). He said
When a worshiper says whilst in prostration: "O Allah, O Lord, O Master! (ya Allah, ya rabbah, ya sayyidah)" three times, He responds: "Here I am, My servant, ask for your need."