Musannaf Ibn Abi Shayba 16:240

Abu Bakr narrated to us, he said: Isa ibn Yunus narrated to us, from al-Awza'i, from Abu Ubayd, the companion of Sulayman, from Nu'aym ibn Salam, he said: I entered upon Umar ibn Abd al-Aziz and found him eating boiled garlic with salt and oil.