Not graded
Hisn al-Muslim (Fortress of the Muslim) 234
((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: (Allah is the greatest))
Cited in Hisn al-Muslim (Fortress of the Muslim) (No. 234).