I have a question about Imam Ridha A.S, how many children did He have? I know Imam Jawad A.S was his only son so what were the names of his daughters?

According to many scholars, he did not have any daughters. He only had one child: Imam Jawad (a). Shaykh Mufid states that he did not have any other children. Yes, one historian has mentioned that he had a daughter by the name of Fatima, but this is not proven.