Sunan Ibn Majah, Volume 2, Book 6, Hadith 1506 (DarusSalam) ⓘ
It was narrated from Kathir bin ‘Abdullah, from his father, from his grandfather, that the Messenger of Allah said the Takbir five times.
حَدَّثَنَا إِبْرَاهِيمُ بْنُ الْمُنْذِرِ الْحِزَامِيُّ، حَدَّثَنَا إِبْرَاهِيمُ بْنُ عَلِيٍّ الرَّافِعِيُّ، عَنْ كَثِيرِ بْنِ عَبْدِ اللَّهِ، عَنْ أَبِيهِ، عَنْ جَدِّهِ، أَنَّ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ كَبَّرَ خَمْسًا .
also referenced under: Hadith 1506 (Reference) & Book 6, Hadith 1573 (In-Book)