Sahih Bukhari
To make the Heart Tender (Ar-Riqaq)
Volume: 008 / Book Number: 076 / Hadith Number: 561
Narrated Sahl:
The Prophet said, "The people of Paradise will see the Ghuraf (special abodes) in Paradise as you see a star in the sky." Abu Said added: "As you see a glittering star remaining in the eastern horizon and the western horizon."