It is narrated from Sayyiduna al-Bara' bin Azib (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) used to say the takbir at every lowering and every rising.
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from Abu Ishaq except Isma'il bin Mujalid."