وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ نَافِعٍ، أَنَّ عَبْدَ اللَّهِ بْنَ عُمَرَ، حَنَّطَ ابْنًا لِسَعِيدِ بْنِ زَيْدٍ وَحَمَلَهُ ثُمَّ دَخَلَ الْمَسْجِدَ فَصَلَّى وَلَمْ يَتَوَضَّأْ ‏.‏ قَالَ يَحْيَى وَسُئِلَ مَالِكٌ هَلْ فِي الْقَىْءِ وُضُوءٌ قَالَ لاَ وَلَكِنْ لِيَتَمَضْمَضْ مِنْ ذَلِكَ وَلْيَغْسِلْ فَاهُ وَلَيْسَ عَلَيْهِ وُضُوءٌ ‏.‏

Yahya related to me from Malik from Nafi that Abdullah ibn Umarprepared the body of one of Said ibn Zayd's sons for burial andcarried it and then entered the mosque and prayed without doing wudu. Yahya said that Malik was asked whether it was necessary todo wudu because of regurgitating undigested food and he said, "No,wudu is not necessary, but the mouth should be rinsed." Translation Not Available

Book Ref: Muwatta Imam Malik Book 2 Hadith 48
Web Ref:  Muwatta Imam Malik Book 2 Hadith 18