Riyad as-Salihin 1300
Abu Hurairah (May Allah be pleased with him) reported:
The Messenger of Allah (ﷺ) said, "In Jannah there are a hundred grades which Allah has prepared for those who fight in His Cause; and the distance between any two of those grades is like the distance between the heaven and the earth." [Al-Bukhari] .
وعنه أن رسول الله صلى الله عليه وسلم قال‏:‏ ‏
"‏إن في الجنة مائة درجة أعدها للمجاهدين في سبيل الله ما بين الدرجتين كما بين السماء والأرض‏"‏ ‏(‏‏(‏رواه البخاري‏)‏‏)‏‏.‏