Sunan Ibn Majah, Hadith 2347 ⓘ
It was narrated from 'Aishah that : when the Prophet traveled, he would cast lots among his wives (to decide which one would accompany him).
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا يَحْيَى بْنُ يَمَانٍ، عَنْ مَعْمَرٍ، عَنِ الزُّهْرِيِّ، عَنْ عُرْوَةَ، عَنْ عَائِشَةَ، أَنَّ النَّبِيَّ صلى الله عليه وسلم كَانَ إِذَا سَافَرَ أَقْرَعَ بَيْنَ نِسَائِهِ .
also referenced under: Book 13, Hadith 40 (In-Book) & Volume 3, Book 13, Hadith 2347 (DarusSalam)