مُوَطَّأُ مَالِكٍ
Muwatta Malik 54
Purity
وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ يَحْيَى بْنِ سَعِيدٍ، أَنَّهُ سَأَلَ عَبْدَ اللَّهِ بْنَ عَامِرِ بْنِ رَبِيعَةَ عَنِ الرَّجُلِ، يَتَوَضَّأُ لِلصَّلاَةِ ثُمَّ يُصِيبُ طَعَامًا قَدْ مَسَّتْهُ النَّارُ أَيَتَوَضَأُ قَالَ رَأَيْتُ أَبِي يَفْعَلُ ذَلِكَ وَلاَ يَتَوَضَّأُ .
Yahya related to me from Malik from Yahya ibn Said that he asked Abdullah ibn Amir ibn Rabia whether a man who did wudu for prayer and then ate cooked food had to do wudu again. He said, "I saw my father do that without doing wudu ."
Arabic/English book reference: Book 2, Hadith 24