The Book Pertaining to Paradise, Its Description, Its Bounties and Its Intimates (Kitab Al-Jannat wa Sifat Na'imiha wa Ahliha)
Muslim :: Book 40 : Hadith 6806
This hadith has been transmitted on the authority of Abu Bakr b. Abu Musa b. Qais who, on the authority of his father, reported the Apostle (may peace be upon him) to have said that there would be a tent made of a pearl whose height towards the sky would be sixty miles. In each corner, there would be a fanaily of the believer, out of sight for the others.