It wasnarrated from Kathir bin 'Abdullah, from his father, from hisgrandfather, that the Messenger of Allah (ﷺ) said the Takbir fivetimes. (RU)
English reference (RU): Vol. 1, Book 6, Hadith 1506 (RU)
Arabic reference (RU): Book 6, Hadith 1573 (RU)