وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ يَحْيَى بْنِ سَعِيدٍ، أَنَّ عَاتِكَةَ ابْنَةَ زَيْدِ بْنِ عَمْرِو بْنِ نُفَيْلٍ، - امْرَأَةَ عُمَرَ بْنِ الْخَطَّابِ - كَانَتْ تُقَبِّلُ رَأْسَ عُمَرَ بْنِ الْخَطَّابِ وَهُوَ صَائِمٌ فَلاَ يَنْهَاهَا ‏.‏

Yahya related to me from Malik from Yahya ibn Said that Atikabint Zayd ibn Amr ibn Nufayl, the wife of Umar ibn al-Khattab, used tokiss Umar ibn al-Khattab's head while he was fasting, and he did nottell her not to. Translation Not Available

Book Ref: Muwatta Imam Malik Book 18 Hadith 648
Web Ref:  Muwatta Imam Malik Book 18 Hadith 15