A’ishah wife of the Prophet ﷺ reported “When the Apostle of Allaah ﷺ intended to go on a journey he cast lots amongst his wives and the one who was chosen by lot went on it with him. He divided his time, day and night (equally) for each of his wives except that Saudah daughter of Zam’ah gave her day to A’ishah. (Using translation from Abū Dāʾūd 2138)
كَانَ رَسُولُ اللهِ ﷺ إِذَا أَرَادَ سَفَرًا أَقْرَعَ بَيْنَ نِسَائِهِ فَأَيَّتُهُنَّ خَرَجَ سَهْمُهَا خَرَجَ بِهَا مَعَهُ وَكَانَ يَقْسِمُ لِكُلِّ امْرَأَةٍ مِنْهُنَّ يَوْمَهَا وَلَيْلَتَهَا غَيْرَ أَنَّ سَوْدَةَ بِنْتَ زَمْعَةَ وَهَبَتْ يَوْمَهَا وَلَيْلَتَهَا لِعَائِشَةَ زَوْجِ النَّبِيِّ ﷺ تَبْتَغِي بِذَلِكَ رِضَا رَسُولِ اللهِ ﷺ