بُلُوغُ الْمَرَامِ
Bulugh al-Maram 500
The Book of Prayer
وَعَنْ عَلِيٍّ - رضى الله عنه - قَالَ: { مِنَ اَلسُّنَّةِ أَنْ يَخْرُجَ إِلَى اَلْعِيدِ مَاشِيًا } رَوَاهُ اَلتِّرْمِذِيُّ, وَحَسَّنَهُ [1] .
Narrated 'Ali (RA): It is Sunnah to go to the 'Eid (prayer) walking. [Reported by at-Tirmidhi who graded it Hasan (good)].
Sunnah.com reference: Book 2, Hadith 428