Sunan an-Nasa'i 174
سنن النسائي#174Da'ifIbn 'Abbas said:"Should I perform Wudu' after eating food that I see in the Book of Allah is permissible because fire has touched it?" Abu Hurairah gathered some pebbles and said: "I bear witness (as many times as) the number of these pebbles, that the Messenger of Allah (ﷺ) said: 'Perform Wudu' from that which has been touched by fire
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiDaif
In-book reference: 1:175