The evidence that it is permissible to kiss and play with one’s wife, if one is sure that there is no risk of reaching climax, is the report narrated by al-Bukhaari (1927) and Muslim (1106) from ‘Aa’ishah (may Allaah be pleased with her) who said: “The Prophet (peace and blessings of Allaah be upon him) used to kiss and touch (his wives) while he was fasting, and he was the most in control of his desires.’” In Saheeh Muslim (1108) it is narrated from ‘Amr ibn Salamah that he asked the Messenger of Allaah (peace and blessings of Allaah be upon him), “Can a fasting person kiss (his wife)?” The Messenger of Allaah (peace and blessings of Allaah be upon him) said, “Ask her” – meaning Umm Salamah – and she told him that the Messenger of Allaah (peace and blessings of Allaah be upon him) used to do that.
Shaykh ‘Abd al-‘Azeez ibn Baaz said:
A man may kiss, embrace and touch his wife, without having intercourse, when he is fasting. This is permissible and there is nothing wrong with it, because the Prophet (peace and blessings of Allaah be upon him) used to kiss and touch his wives when he was fasting. But if there is the fear that he may do something that Allaah has forbidden because his desire is aroused quickly, then it is makrooh for him to do that. If he ejaculates he still should not eat or drink for the rest of the day, and he has to make up the fast, but he does not have to offer kafaarah (expiation) according to the majority of the scholars. But madhiy (prostatic fluid) does not invalidate the fast, according to the more correct of the two scholarly views, because the basic principle is that the fast remains valid, and because it is too difficult to avoid. And Allaah is the Source of strength.
Fataawa al-Shaykh Ibn Baaz, part 4, p. 202