Reference: Fataawa wa Rasaa.il Shaykh ‘Abdur-Razzaaq ‘Afeefee – Volume 1, Page 187-188, Fatwa No.14
Question: What is the ruling regarding the congregational takbeer for the ‘Eed prayer?
Response: It has been legislated for a person to make takbeer from his home to the musallaa (area designated for the ‘Eed prayer), and whilst at the musallaa he should audibly [continue to] do so, each person unto himself, such that the place vibrates with the [sound of the] takbeer. As for them mutually agreeing to start and finish together [in congregation], then there is nothing (evidence) to indicate the permissibility of the congregational takbeer, and it has not been legislated.