‘Umar ibn Abi Salamah reported that he asked the Messenger of Allah (may Allah's peace and blessings be upon him): "Can a fasting person kiss?" The Messenger of Allah (may Allah's peace and blessings be upon him) said to him: "Ask her" (’Umm Salamah). So, she informed him that the Messenger of Allah (may Allah's peace and blessings be upon him) would do that. Thereupon, he said: "O Messenger of Allah, Allah forgave your past and future sins for you." Whereupon, the Messenger of Allah (may Allah's peace and blessings be upon him) said to him: "Indeed, by Allah, I am the most heedful and fearful of Allah among you.".
Commentary :
Fasting has specific rulings that a Muslim must know and act upon. The Prophet (may Allah's peace and blessings be upon him) demonstrated its obligatory elements, Sunnahs, and disliked things verbally and physically.
In this Hadīth, ‘Umar ibn Abi Salamah (may Allah be pleased with him), the foster son of the Prophet (may Allah's peace and blessings be upon him), relates that he asked the Messenger of Allah (may Allah's peace and blessings be upon him): "Can a fasting person kiss" his wife or a woman lawful for him during the daytime of Ramadan without his fast being invalidated due to that? Thereupon, the Messenger of Allah (may Allah's peace and blessings be upon him) said to him: "Ask this" i.e., ’Umm Salamah, who is the mother of ‘Umar ibn Abi Salamah (may Allah be pleased with them). So, she informed him that the Messenger of Allah (may Allah's peace and blessings be upon him) would kiss his wives while he was fasting. Thereupon, he said: "O Messenger of Allah, Allah forgave your past and future sins for you" i.e., this is one of your peculiar traits and you are not blameworthy in what you do, for Allah forgave your past and future sins. In response, the Messenger of Allah (may Allah's peace and blessings be upon him) said to him: "Indeed, by Allah, I am the most heedful and fearful of Allah among you" i.e., I am the most knowledgeable among you of what I do in heedfulness of Allah Almighty and the most fearful among you of His punishment. So, how would you think of me, or see it as possible, that I may engage in something prohibited?! This denotes criticism of those who thought he might fall short in worship due to reliance upon the forgiveness of his sins.
It is said: The Messenger of Allah (may Allah's peace and blessings be upon him) referred 'Umar ibn Abi Salamah (may Allah be pleased with him), concerning this question, to his mother, whereas during Jāhiliyyah, a person would not allude to the son or brother of his wife that he kissed or approached her intimately. And indeed, the Messenger of Allah (may Allah's peace and blessings be upon him) is more exalted with regard to refraining from that. But, the Messenger of Allah (may Allah's peace and blessings be upon him) wanted to point out that their refrainment from that during Jāhiliyyah was frivolous behavior on their part and unrelated to the Shariah. So, he referred him to his mother.
The Hadīth indicates that kissing during the fast is not part of the peculiar traits of the Prophet (may Allah's peace and blessings be upon him)..