Musannaf Ibn Abi Shaybah

Hazrat Ata bin Saib says that I saw Hazrat Abu Ja'far performing Rami before sunrise, and Hazrat Ata, Hazrat Tawus, Hazrat Mujahid, Hazrat Nakha'i, Hazrat Amir, and Hazrat Saeed bin Jubair would perform Rami whenever they came, and they did not consider there to be any harm in it.

15210 - And Ata, Tawus, Mujahid, Al-Nakha'i, Amir, and Sa'id ibn Jubayr would stone when they arrived, at any hour (they arrived) (1), and they saw no harm in that.

Hazrat Ata did not consider it objectionable to perform the stoning of Jamrah Aqabah before sunrise.

Hazrat Aisha (may Allah be pleased with her) narrates that I wished to seek permission from the Noble Prophet (peace and blessings be upon him) just as Hazrat Sawda had sought permission from him to come to Mina at night and perform the stoning before the arrival of the people, and the Noble Prophet (peace and blessings be upon him) granted her permission because she was heavy-bodied.

It is narrated from Abdullah bin Abdullah that Ibn Umar (may Allah be pleased with them both) sent his children to Mina on the night of Muzdalifah. They performed the Fajr prayer in Mina and did the stoning (Rami) before the people arrived.