Musannaf Ibn Abi Shayba 3:3156

Yazid ibn Harun, Muhammad ibn Bishr, and Ibn Idris narrated to us, they said: Muhammad ibn ‘Amr narrated to us, from ‘Ubaydah ibn Sufyan al-Hadrami, who said: I heard Abu al-Ja‘d al-Damri—and he had companionship [with the Prophet]—saying: The Messenger of Allah (may Allah bless him and grant him peace) said: "Whoever leaves the Friday [prayer] three times out of negligence, a seal will be placed upon his heart."