Abdullah bin Abbas reported,

The Messenger of Allah ﷺ would have a drink steeped for him at the start of the night, which he would then drink the following morning, that night, the next day, the night after, and the day after until the afternoon. If anything remained, he would give it to the servant to drink or order it to be poured out.In another wording, a drink would be steeped for the Messenger of Allah in a waterskin from the night of Monday, and he would drink it on Monday and Tuesday until the afternoon. If anything was left over, he would give it to the servant to drink or pour it out.

عن ابن عباس قال

كان رسول الله ﷺ ينتبذ له أول الليل، فيشربه إذا أصبح يومه ذلك، والليلة التي تجيء، والغد والليلة الأخرى، والغد إلى العصر، فإن بقي شيء سقاه الخادم أو أمر به فصب. وفي لفظ: كان رسول الله لا ينتبذ له في سقاء من ليلة الاثنين، فيشربه يوم الاثنين والثلاثاء إلى العصر، فإن فضل منه شيء سقاه الخادم أو صبه.