Reading 313 times "hasbunallah wa nimal wakeel"
Q: Some Muslim scholar have said that a guy called him and told him that he saw Nabi Muhammad (sallallahu alaihi wasallam) in his dreams and he asks to read 3 times Surah Fatiha, 3 times Surah Ikhlas and 313 times "hasbunallah wa nimal wakeel".
My question is that is there any hadeeth related to 313 times reading "hasbunallah wa nimal wakeel". Please advise for the above in the light of Islam.