Praise be to Allah.
Kissing any place on earth is bid’ah (an innovation), apart from the Black Stone. Were it not that this is following the example of the Prophet (peace and blessings of Allaah be upon him), kissing the Black Stone would be bid’ah too. ‘Umar (may Allaah be pleased with him) used to say: “I know that you are only a stone and can neither cause harm nor bring benefit. Were it not for the fact that the Prophet (peace and blessings of Allaah be upon him) kissed you, I would not have kissed you.” Hence it is not permissible to kiss the covers of the Ka’bah or its stones, or the Yemeni Corner, or the Mus-haf, or to touch them with the intent of seeking blessing from them .