وَحَدَّثَنِي عَنْ مَالِكٍ، أَنَّهُ بَلَغَهُ أَنَّ عَبْدَ اللَّهِ بْنَ مَسْعُودٍ، كَانَ يَقُولُ مِنْ قُبْلَةِ الرَّجُلِ امْرَأَتَهُ الْوُضُوءُ ‏.‏

Yahya related to me from Malik that he had heard that Abdullahibn Masud used to say, "Wudu is necessary if a man kisses his wife." Translation Not Available

Book Ref: Muwatta Imam Malik Book 2 Hadith 97
Web Ref:  Muwatta Imam Malik Book 2 Hadith 67