What is the authenticity of the hadith: (When the imam ascends the pulpit, there is no prayer and no speech)?

The Shaykh : That is the hadith we see written and carved on the door of the pulpit in some Arab countries. He (peace and blessings be upon him) said: , and this is a hadith with no basis from the Messenger of Allah (peace and blessings be upon him). Nevertheless, you will find that the Hanafis, to this day, when one of them enters the mosque on Friday and the imam is on the pulpit, they act upon this hadith and do not pray; because the hadith tells them: when the preacher ascends the pulpit, there is no prayer and no speech. So, even though this hadith is weak—as I mentioned earlier from al-Zayla'i—it contradicts some of the authentic hadiths. The other scholars took from these authentic hadiths his (peace and blessings be upon him) saying: , ; meaning: he should shorten them to free himself to listen... to the sermon. In the previous hadith, which is not authentic, it linked abstaining from prayer and speech merely to the preacher coming out on the pulpit. The Messenger (peace be upon him) says in this hadith: , but: ; meaning: he should shorten them. Likewise, the other hadith says, he (peace and blessings be upon him) said: . So, speech is prohibited while the preacher is delivering the sermon, whereas that hadith says: when he ascends.