It is narrated from Sayyiduna Sahl bin Sa'd (may Allah be pleased with him) that he said: "We used to say that the pulpit stands upon one of the doors of Paradise." Sahl (may Allah be pleased with him) said: "Do you know what 'tur'ah' is? It is the door."
Hadith Referenceالمعجم الكبير للطبراني / باب السين / 5867