Riyad as-Salihin (The Meadows of the Righteous)
by Imam Nawawi
349. Chapter: On the strong prohibition against a slave running away from his master
1768. Jarir ibn 'Abdullah reported that the Messenger of Allah, may Allah bless him and grant him peace, said, "Whenever a slave runs away, protection is removed from him." [Muslim]
1769. Jarir reported that the Prophet, may Allah bless him and grant him peace, said, "When a slave runs away, his prayer is not accepted from him." [Muslim]
In one variant, "He has disbelieved."