Mishkat al-Masabih 21 Foods كتاب الأطعمة 124

وَعَنِ ابْنِ عَبَّاسٍ قَالَ: كَانَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يُنْبَذُ لَهُ أَوَّلَ اللَّيْلِ فَيَشْرَبُهُ إِذَا أَصْبَحَ يَوْمَهُ ذَلِكَ وَاللَّيْلَةَ الَّتِي تَجِيءُ وَالْغَدَ وَاللَّيْلَةَ الْأُخْرَى وَالْغَدَ إِلَى الْعَصْرِ فَإِنْ بَقِيَ شَيْءٌ سَقَاهُ الْخَادِمَ أَوْ أَمَرَ بهِ فصُبَّ. رَوَاهُ مُسلم

Ibn ‘Abbas told that dates were steeped for God’s messenger at the beginning of the night and he would drink it in the morning and the night after, the following day and the night after, and the next day up to the afternoon. If anything remained, he gave it to the servant to drink, or gave orders and it was poured out. Muslim transmitted it.