Ibn Juraij said: And Ata informed me from Ibn Abbas and from Jabir bin Abdullah, may Allāh be pleased with them, both of them said that
on the day of Eid al-Fitr and Eid al-Adha, the adhan was not given.
وأَخْبَرَنِي عَطَاءٌ، عَنِ ابْنِ عَبَّاسٍ، وَعَنْ جَابِرِ بْنِ عَبْدِ اللَّهِ، قَالاَ
لَمْ يَكُنْ يُؤَذَّنُ يَوْمَ الفِطْرِ وَلاَ يَوْمَ الأَضْحَى
Reference: Sahih Al Bukhari 960