It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that he saw the Noble Prophet (peace and blessings be upon him) himself touching the Black Stone, so I will continue to touch it regardless of any hardship or ease.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 4887
Hadith Gradingحکم دارالسلام:إسناده صحيح، وانظر ما بعده.