Sunan Ibn Majah - Book 13, Hadith 40
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It was narrated from 'Aishah that : when the Prophet (ﷺ) traveled, he would cast lots among his wives (to decide which one would accompany him).
How the Prophet ص modelled this behaviour here
Justice & Fairness
“he would cast lots among his wives (to decide which one would accompany him)”
Treats his wife (and co-wives) justly and equitably; honors her rights and gives her what is due without wronging her.