I read in the proof sheets of Hardy on Ramanujan: "As someone said, each of the positive integers was one of his personal friends." My reaction was, "I wonder who said that; I wish I had." In the next proof-sheets I read (what now stands), "It was Littlewood who said..."
John Edensor Littlewood, Béla Bollobás (1986). “Littlewood's Miscellany”, p.61, Cambridge University Press