Musannaf Ibn Abi Shaybah

Hazrat Isa bin Sahl says that he saw his grandfather, Hazrat Rafi’ bin Khadij, and his sons sitting in the mosque; when the sun would rise, they would perform two rak’ahs and then set out towards the Eidgah. They used to do this on both Eid al-Fitr and Eid al-Adha.