It is narrated from Sayyiduna Umar bin Abi Salamah (may Allah be pleased with him) that he asked the Messenger of Allah (peace and blessings be upon him): "May a fasting person kiss (his wife)?" He (peace and blessings be upon him) said to him: "Ask her." He (peace and blessings be upon him) was indicating the Mother of the Believers Sayyidah Umm Salamah (may Allah be pleased with her), and she told him that the Messenger of Allah (peace and blessings be upon him) used to do that. At this he said: "O Messenger of Allah! Allah Almighty has forgiven all your past and future sins." The Messenger of Allah (peace and blessings be upon him) said: "Indeed, I am the one among you who fears Allah the most, and the one among you who knows His limits the best."
Imam al-Tabarani (may Allah have mercy on him) said: "This hadith is not narrated from Umar bin Abi Salamah (may Allah be pleased with him), from his mother, the Mother of the Believers Sayyidah Umm Salamah (may Allah be pleased with her), except with this chain, and Amr bin al-Harith (may Allah have mercy on him) is alone in narrating it."
Hadith Referenceالمعجم الأوسط / باب الألف / 1923
Hadith Takhrij«أخرجه مسلم فى «صحيحه» برقم: 1108، وابن حبان فى «صحيحه» برقم: 3538، والبيهقي فى «السنن الكبرى» برقم: 8202، والطبراني فى «الكبير» برقم: 8294، والطبراني فى «الأوسط» برقم: 5140»