It was narrated from ʼUmar bin al Khattab رضي الله عنه that the Prophet ﷺ said:
“O ‘Umar, you are a strong man. Do not crowd others to touch the Black Stone, lest you harm the weak. If you find a gap, then touch it, otherwise turn to face it and say Lailaha illallah, and Allahu akbar.`