Hadith 3243
Narrated `Abdullah bin Qais Al-Ash`ari: The Prophet said, "A tent (in Paradise) is like a hollow pearl which is thirty miles in height and on every corner of the tent the believer will have a family that cannot be seen by the others." (Narrated Abu `Imran in another narration, "The tent is sixty miles in height.")
Hadith 5061
Narrated Jundub: The Prophet said, "Recite (and study) the Qur'an as long as you agree about its interpretation, but when you have any difference of opinion (as regards its interpretation and meaning) then you should stop reciting it (for the time being)'