Abu Huraira reported: The Messenger of Allah, peace and blessings be upon him, said, “Whoever has faith in Allah and His Messenger, establishes prayer, and fasts the month of Ramadan, he will have a right upon Allah that he will enter Paradise, whether he wages jihad in the way of Allah or remains in his homeland.” They said, “O Messenger of Allah, shall we not give the glad tidings to people?” The Prophet said, “Verily, in Paradise are one hundred levels which Allah has reserved for those who strive in jihad in His way; the distance between two levels is like the distance between the heavens and the earth. When you ask Allah, ask for al-Firdaws, as it is the best and highest level of Paradise, above which is the Throne of the Most Merciful from which the rivers of Paradise flow.”
Source: Ṣaḥīḥ al-Bukhārī 2790
Grade: Sahih (authentic) according to Al-Bukhari
عَنْ أَبِي هُرَيْرَةَ رَضِيَ اللَّهُ عَنْهُ قَالَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ مَنْ آمَنَ بِاللَّهِ وَبِرَسُولِهِ وَأَقَامَ الصَّلَاةَ وَصَامَ رَمَضَانَ كَانَ حَقًّا عَلَى اللَّهِ أَنْ يُدْخِلَهُ الْجَنَّةَ جَاهَدَ فِي سَبِيلِ اللَّهِ أَوْ جَلَسَ فِي أَرْضِهِ الَّتِي وُلِدَ فِيهَا فَقَالُوا يَا رَسُولَ اللَّهِ أَفَلَا نُبَشِّرُ النَّاسَ قَالَ إِنَّ فِي الْجَنَّةِ مِائَةَ دَرَجَةٍ أَعَدَّهَا اللَّهُ لِلْمُجَاهِدِينَ فِي سَبِيلِ اللَّهِ مَا بَيْنَ الدَّرَجَتَيْنِ كَمَا بَيْنَ السَّمَاءِ وَالْأَرْضِ فَإِذَا سَأَلْتُمُ اللَّهَ فَاسْأَلُوهُ الْفِرْدَوْسَ فَإِنَّهُ أَوْسَطُ الْجَنَّةِ وَأَعْلَى الْجَنَّةِ أُرَاهُ فَوْقَهُ عَرْشُ الرَّحْمَنِ وَمِنْهُ تَفَجَّرُ أَنْهَارُ الْجَنَّةِ
2790 صحيح البخاري كتاب الجهاد والسير باب درجات المجاهدين في سبيل الله