The pebble uttered its faith in the wilayath of Amir’ul-Mu’mineen ‘Ali (as)

Salman narrates that one day he went to the Prophet (S) when Amir’ul-Mu’mineen ‘Ali (as) too arrived. The Prophet (S) had a pebble in his hand. He put the pebble in Amir’ul-Mu’mineen ‘Ali (as)’s hand. The pebble uttered the twin witness of la ilaha ill Allah, Mohammadur Rasool Allah. Then the pebble also uttered its faith in the wilayath of Amir’ul-Mu’mineen ‘Ali (as). The Prophet (S) then said that whosoever witnessed that Allah is one, Muhammad (S) is His Prophet and ‘Ali (as), the Wali and Vicegerent can have no fear of going to the Hell.  Reference :Ain-Al Hayat, The Essence of Life