Musannaf Ibn Abi Shayba 9:1145

Ibn Numayr narrated to us, from Hajjaj, from al-Hasan, from ‘Arak ibn Malik, from ‘Urwah, from ‘A’ishah, she said: The Messenger of Allah (may Allah bless him and grant him peace) said: "That which is forbidden by lineage is forbidden by suckling."