AlaHadrat Imam Ahmad Rida Khan (Alayhir Rahmah) wrote approximately 1000 books on different topics. He wrote millions of Fatawa (religious rulings) from the period 1286 A.H. to 1340 A.H., but unfortunately, all of them could not be recorded. Those which were copied have been compiled under the title "Al-Ataya an-Nabawiyyah fi al-Fatawa ar-Radawiyyah".
The latest edition of "Fatawa Radawiyyah" consists of 30 Volumes, 21656 Pages, 6847 Question-Answers and 206 Booklets. His thorough knowledge of Quran, Ahadith, Fiqh, Mantiq (logic) etc. can be judged only by a deep study of his Fatawa where oceans of argumentation is turbulent; rivers of texts are overflowing; the moons of the love for Al-Mustafa (Sallallahu Alayhi wa Aalihi wa Sallam) are beaming; the suns of reverence for His Presence are effulgent; the stars of the light of the Faith are glittering; The gardens of Al-Haq are swaying; The flowers of research send out fragrance; the nightingales of the Guidance are twittering; the crows of the hypocrites breathing their last; the owls of the heretics squalling; and the impudent slaughtered tossing... wal Hamdu LILLAH!!