I prayed the 'Id prayer with the Prophet ﷺ not once or twice (but many times) without the adhan and the iqamah. (Using translation from Abū Dāʾūd 1148)
«صَلَّيْتُ الْعِيدَ مَعَ النَّبِيِّ ﷺ غَيْرَ مَرَّةٍ وَلَا مَرَّتَيْنِ بِغَيْرِ أَذَانٍ وَلَا إِقَامَةٍ»