It is narrated from Hazrat Aisha (may Allah be pleased with her) that the Prophet (peace and blessings be upon him) used to kiss his wives while he was fasting.
Hadith Referenceمسند احمد / مسند النساء / 25953
Hadith Gradingحکم دارالسلام:حديث صحيح، وهذا إسناد اختلف فيه على الزهري