(1) باب مَا جَاءَ فِي الْهِجْرَةِ وَسُكْنَى الْبَدْوِ
Miqdan bin Shuraih reported on the authority of his father. I asked A'ishah about settling in the desert (to worship Allaah in loneliness). She said "The Apostle of Allaah(ﷺ) would go out (from Madina) to these torrential streams. Once he intended to go out to the desert (for worshipping Allaah). He sent me a She-Camel from the Camels of sadaqah that was not used as a mount. He said to me "A'ishah be lenient, for leniency makes a thing decorated and when it is removed from a thing it makes it defective.
Reference: Sunan Abi Dawud 2478
In-book reference: Book 15, Hadith 2
English translation: Book 14, Hadith 2472