Muhammad bin Amr bin Ata narrated: I entered the house of Maymunah (may Allah be pleased with her), the wife of the Prophet (peace and blessings be upon him), and found Abdullah bin Abbas (may Allah be pleased with them both) there. We discussed together performing ablution from what has been touched by fire. Ibn Abbas (may Allah be pleased with them both) said: The Messenger of Allah (peace and blessings be upon him) would eat what had been touched by fire, then pray and not perform ablution. We said: Did you see this yourself? He pointed to his eyes and said: My eyes saw it.
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 10746