Saying Allahu Akbar when passing the Black Stone

(The Prophet circled the KaAAbah on a camel, every time he reached the black stone he would point to it with his staff and say: (Allah is the greatest))

((طَافَ النَّبيُّ صلى الله عليه وسلم بِالْبَيْتِ عَلَى بَعِيرٍ كُلَّمَا أَتَى الرُّكْنَ أَشَارَ إِلَيْهِ بِشَيْءٍ عِنْدَهُ وَكَبَّرَ)).

(The Prophet circled the KaAAbah on a camel, every time he reached the black stone he would point to it with his staff and say: (Allahu akbar))