Imam Bukhari narrates: Ali bin Abdullah narrated to us, he said: Sufyan narrated to us, he said: Abu Hazim narrated to us, he said:

the people asked Hazrat Sahl bin Sa'd (may Allah be pleased with him) that from what thing was the pulpit made? He said: Now there remains no one among the people who knows this more than me, it is made from the wood of the tamarisk tree from the place Ghabah, a certain freed slave of a certain woman, he made it for the Messenger of Allah ﷺ, when it was made and placed, the Messenger of Allah ﷺ stood upon it, so he faced the Qiblah and said Allahu Akbar, and the people stood behind him, he recited and made Ruku', and the people made Ruku' behind him, then he raised his head, then he turned back upon his heels, then he made Sajdah upon the ground, then he returned to the pulpit, then he recited, then made Ruku', then he raised his head from Ruku', then he turned back upon his heels, until he made Sajdah upon the ground, so this was his way. Imam Abu Abdullah (Bukhari) said: Ali bin Abdullah said: Imam Ahmad bin Hanbal asked me about this Hadeeth, he said: I only intended this that the Prophet ﷺ was elevated above the people, so on the basis of this Hadeeth there is no harm in this that the Imam be elevated above the people, Ali bin Abdullah said to Imam Ahmad bin Hanbal: Sufyan bin Uyainah was asked a lot about this Hadeeth, did you not hear this Hadeeth from him? He said: No.