Ubaidullah Ashja'i narrates: I said to Sufyan, "Dawud has narrated from Sha'bi that Sayyiduna Ali (may Allah be pleased with him) said: 'The dowry will not be less than ten dirhams.'" So Sufyan kept repeating, "Dawud, Dawud," as if he was rejecting him. I said, "Shu'bah has narrated traditions from him," so he struck his forehead with his hand and kept saying, "Dawud, Dawud."