Musnad Ahmad 25:461

'Affan narrated to us, Shu'bah narrated to us, Abu Bishr informed me, he said: I heard Sa'id ibn Jubayr narrating from Ibn 'Abbas: That his maternal aunt, Umm Hufayd, gifted the Messenger of Allah (may Allah bless him and grant him peace) some ghee, some dabb (lizards), and some dried yogurt (aqt). He said: "So he ate from the ghee and from the dried yogurt, and he left the dabb out of disgust." And it was eaten at the table of the Messenger of Allah (may Allah bless him and grant him peace), and had it been forbidden, it would not have been eaten at the table of the Messenger of Allah (may Allah bless him and grant him peace). I said: "Who said: 'Had it been forbidden'?" He said: "Ibn 'Abbas."