It is narrated from Hazrat Ubayy bin Ka'b (may Allah be pleased with him) that when the roof of the Prophet's Mosque was made of grapevine branches, the Holy Prophet (peace and blessings be upon him) used to pray near a trunk and would lean against that trunk while delivering the sermon. One day, a companion (may Allah be pleased with him) submitted, "O Messenger of Allah! Do you permit us to make something for you on which you can stand on Fridays so that people can see you and your sermon can reach them?" The Holy Prophet (peace and blessings be upon him) granted them permission. Thus, they made a pulpit consisting of three steps. When the pulpit was completed and placed at the spot where the Holy Prophet (peace and blessings be upon him) had instructed, and the Holy Prophet (peace and blessings be upon him) passed by the trunk with the intention of ascending the pulpit, the trunk cried so much that it cracked and split from inside. Seeing this, the Holy Prophet (peace and blessings be upon him) returned and placed his hand on it until it became calm, and then the Holy Prophet (peace and blessings be upon him) ascended the pulpit. However, when the Holy Prophet (peace and blessings be upon him) used to pray, he would pray near it, and when the mosque was demolished and its structure was changed, Hazrat Ubayy bin Ka'b took that trunk with him, and it remained with him until it became old and was infested by termites, which made it hollow.