Raisins were steeped for the Messenger of Allah ﷺ and then dried dates were infused in them, or dried dates were steeped and then raisins were infused in them. (Using translation from Abū Dāʾūd 3707)
رَسُولَ اللهِ ﷺ كَانَ يُنْبَذُ لَهُ زَبِيبٌ فَيُلْقَى فِيهِ تَمْرٌ أَوْ تَمْرٌ فَيُلْقَى فِيهِ زَبِيبٌ