Anas b. Malik reported:
The Paradise is surrounded by hardships and the Hell-Fire is surrounded by temptations. (IT)
Reference (IT): Sahih Muslim 2822 (IT)
In-book reference (IT): Book 53, Hadith 1 (IT)
USC-MSA web (English) reference(deprecated numbering scheme): Book 40, Hadith 6778 (IT)