The Garden Beneath Which Rivers Flow

Islamic tradition outside the Quran itself, recorded in hadith literature, describes Jannah as having eight gates, each associated with a particular category of good deed, so that those who excelled especially in prayer, in charity, in fasting or in other specific virtues are called through the gate connected to that practice; the gate reserved for those who fasted is commonly named Ar-Rayyan. This gated structure sits alongside the graded, level-based Paradise the Quran itself describes, with Firdaus as the highest level, so that popular Islamic cosmology layers a hadith-derived system of entry by gate onto a Quran-derived system of dwelling by level, two related but distinct ways of picturing degrees of reward.

The insistence that Jannah is entered through God's mercy rather than earned outright by deeds alone is itself grounded in hadith as much as in the Quran: a widely transmitted saying attributed to Muhammad states that no one, including the Prophet himself, will enter Paradise through their deeds alone, unless God encompasses them with His mercy, a theological emphasis that qualifies even the richly deed-and-reward-oriented framework the gates and grades otherwise suggest.