Musnad Abu Ya'la al-Mawsili 160:209

Abu Ma'mar Isma'il ibn Ibrahim narrated to us, Hafs ibn Ghiyath narrated to us, from Abdullah ibn Sa'id, from his grandfather, from Abu Hurayrah, who said: The Messenger of Allah (may Allah bless him and grant him peace) said: "Whoever is overcome by vomiting, there is no making up (the fast) upon him. And whoever induces vomiting, then upon him is the making up."