The Messenger of Allah ﷺ said, "Paradise is surrounded by hardships, and the Fire is surrounded by desires."
حدثنا عفان حدثنا حماد أخبرنا ثابت
أن رسول الله ﷺ قال حفت الجنة بالمكاره وحفت النار بالشهوات
Its isnad is sahih, mentioned previously at 12497.