The Essence of Islam – Volume III — Page xiii
Publisher's Note xiii. Rabwah, Vakālat-e-Taṣnīf, headed by Professor. Chaudhry Muḥammad ‘Alī reviewed the document, helped in incorporating the verses of the Holy Qur'ān and Urdu and Persian texts, and provided guidance in translating some difficult parts. . The system used for references is the same as adopted in. Volumes I and II. All references, unless otherwise noted, are from the Holy Qur'an. In the text, the references to the Holy Qur'an are given exactly as they were given in the original writings. In the footnotes, references are given in the modern numerical system. In these references, we have counted Bismillahir Raḥmānir Raḥīm as the first verse and have used the numerical system in which the first number refers to the Surah (chapter) and the second number refers to the Ayah (verse). . References to the Books of the Promised Messiahas are based on the London Edition of the Rūḥānī Khazā'in published in 1984. References to Malfūzāt and. Majmu 'ah Ishtihārāt are also based on the London edition. . The following abbreviations have been used in this booklet, Readers are requested to recite the full salutations when reading the book: sa. An abbreviation for sal-lallahu 'alaihi wa sallam, meaning "May peace and blessings of Allah be upon him," is written after the name of the Holy Prophet. Muḥammadsa as. An abbreviation for 'alaihis salām, meaning "May peace be upon him," is written after the name of Prophets other than the Holy Prophetsa.