Hadith 500530
Chapter 2: Purity - كتاب الطهارة
وَحَدَّثَنِي عَنْ مَالِكٍ، أَنَّهُ بَلَغَهُ أَنَّ عَلِيَّ بْنَ أَبِي طَالِبٍ، وَعَبْدَ اللَّهِ بْنَ عَبَّاسٍ، كَانَا لاَ يَتَوَضَّآنِ مِمَّا مَسَّتِ النَّارُ .
Yahya related to me from Malik that he had heard that Ali ibn Abi Talib and Abdullah ibn Abbas did not do wudu after eating cooked food.
Reference Muwatta Malik 500530
USC-MSA web (English) reference : Book 2, Hadith 23