Yahya related to me from Malik that Yahya ibn Said said that heheard Said ibn al-Musayyab say, "Suckling is only while the child isin the cradle. If not, it does not cause flesh and blood relations." (DE)
USC-MSA web (English) reference: Book 30, Hadith 11 (DE)
Arabic reference (DE): Book 30, Hadith 1285 (DE)