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Wellsprings
islamic-fiqhWe're still mapping where this idea was first discussed. Key passages and related ideas below.

Ribā (Usury / Unlawful Increase)

The categorical prohibition of usurious increase, comprising ribā al-faḍl (unequal exchange of like commodities) and ribā al-nasīʾa (deferment interest).

The categorical prohibition of usurious increase, comprising ribā al-faḍl (unequal exchange of like commodities) and ribā al-nasīʾa (deferment interest).

Key passages(10)

Rasail Wa Fatawa · Ibn Taymiyya

High

Manaqib Shafici · al-Bayhaqi

High

Nihaya · Shaykh al-Tusi

High

Sunan Ibn Majah · Ibn Majah

High

Kashf Wa Bayan · Al-Tha'labi

High

Muhalla Bi Athar · Ibn Hazm

High

Sunan Saghir · al-Bayhaqi

Moderate

Fihrist · Shaykh al-Tusi

Moderate

Sharh Tanqih · al-Qarafi

Moderate

Usul · al-Sarakhsi

Moderate