Installation of Ḥajar al-Aswad [the Black Stone] by the Imām Mahdī (mgehr)
So that year, I wished to perform Hajj in the hope of meeting His Majesty Sahib al-Amar (mgehr); because, it has been narrated in Aḥadīth Ṣaḥīḥ1 that, Ḥajar al-Aswad will not be installed by anyone other than the one ,who is infallible or is Imām Zamān (mgher). Similarly, before Beˈthat [the prophetic mission of the Messenger of God (pbuh&h)], when Kaʿbah was destroyed by flood, it was His Majesty the Messenger of God (pbuh&h) who installed it.