O son of al-Akwa', you have turned apostate and have come to live again in the desert with the Bedouins (after your migration). He said: No, but the Messenger of Allah ﷺ has permitted me to live in the desert. (Using translation from Muslim 1862)   

«لَا وَلَكِنَّ رَسُولَ اللهِ ﷺ قَدْ أَذِنَ لِي فِي الْبُدُوِّ»