question #3 Sahih Muslim 400b, Book 4, Hadith 57 : What does the promise of Kauthar reveal about the blessings awaiting the Prophet Muhammad (ﷺ) in the afterlife?

It (Kauthar) is a canal which my Lord the Exalted and the Glorious has promised me in Paradise. There is a tank over it, but he made no mention of the tumblers like the number of the stars.