Sahih Muslim
The Book Pertaining to Paradise, Its Description, Its Bounties and Its Intimates (Kitab Al-Jannat wa Sifat Naimiha wa Ahliha)
Book Number: 040 / Hadith Number: 6823
Anas b. Malik reported that Allah's Apostle (may peace be upon him) said that the Hell would continue to say: Is there anything more, until Allah, the Exalted and High, would place His foot therein and that would say: Enough, enough, by Your Honour, and some parts of it would draw close to the other.