The Prophet ﷺ said, "Perform ablution after eating anything touched by fire."
حدثنا عبد الملك بن عمرو قال حدثنا ابن أبي ذئب عن الزهري عن عمر بن عبد العزيز عن ابن قارظ
أن النبي ﷺ قال توضئوا مما مست النار
Its isnad is sahih, it previously occurred at 7594 and 9487. Ibn Qarith is Ibrahim bin Abdullah bin Qarith, attributed to his grandfather, and he is trustworthy.