Volume 8, Book 76, Number 583:
Narrated Anas bin Malik:
The Prophet said: “While I was walking in Paradise (on the night of Mi’raj), I saw a river, on the
two banks of which there were tents made of hollow pearls. I asked, “What is this, O Gabriel?’ He
said, ‘That is the Kauthar which Your Lord has given to you.’ Behold! Its scent or its mud was sharp
smelling musk!” (The sub-narrator, Hudba is in doubt as to the correct expression. )