It was narrated from ‘Amr bin Shu’aib, from his father, from his grandfather, that the Prophet (ﷺ) said the Takbir seven times and five times in the ‘Eid prayer.
Hadith ReferenceSunan Ibn Majah / Establishing the Prayer and the Sunnah Regarding Them / Hadith: 1278
Hadith Gradingالألبانی:حسن صحيح | زبیر علی زئی:إسناده حسن