Hadith 331

Ibn Mas'ud used to say, “Ablution is necessary when a man kisses his wife.” Malik transmitted it.

وَعَن ابْن مَسْعُود كَانَ يَقُولُ: مِنْ قُبْلَةِ الرَّجُلِ امْرَأَتَهُ الْوُضُوءُ. رَوَاهُ مَالك

Reference: 5603310
In-book reference: Book 3, Hadith 331