Mukhtasar Bukhari

Narrated from Sayyiduna Abdullah bin Qais (may Allah be pleased with him) that the Messenger of Allah (peace and blessings of Allah be upon him) said: "In Paradise, there is a tent made of a hollow pearl, and the width of this tent is sixty miles. In every corner of it will be the wives of the Muslims; those in one corner will not be able to see those in the other corners, and the believing men will go around to them...." (The rest of the hadith has been mentioned in the commentary of Surah Ar-Rahman.)