David Pingree translates the Arabic passage of the fourth book by Dorotheus as follows:
When a native is born, the lord of the year is the lord of the house [ascendent] in which the native was born. Thus count from the ascendent a year for each sign until you reach the year which you desire; the lord of that house is the lord of the year. Look at the lord of this sign, whether it is a benefic or a malefic, and in the base nativity how its position was and in which foundation it was. From the base-nativity is known what is concerning him [the native] at the beginning of the year, and the beginning of the year is always when the Sun enters the beginning of the minute in which it was on the day of the native's nativity. (Pingree, Dorotheus, 4)
Bibliography
Dorothei Sidonii Carmen Astrologicum, ed. David Pingree, Teubner, Leipzig, 1976.
Firmicus Maternus, Ancient Astrology, Theory and Practice: Matheseos Libri VIII, trans. Jean Rhys Bram, Noyes Press, Park Ridge, New Jersey, 1975.
Greenbaum, Dorian Gieseler (trans.), Late Classical Astrology: Paulus Alexandrinus and Olympiodorus, with the Scholia from Later Commentators, ed. Robert Hand, ARHAT, Reston, VA, 2001.
Hephaistio of Thebes, Apotelesmatics, Book II, trans. Robert H. Schmidt, The Golden Hind Press, Cumberland, MD, 1998.
Kraus, P. al-Biruni: The Book of Instruction in the Elements of the Art of Astrology, transl. by R. Ramsay Wright (Book Review). Orientalistische Literaturzeitung, 38, 692, 1935.
Manilius, Astronomica, ed. and trans. G. P. Goold, Loeb Classical Library, Harvard University Press, Cambridge, MA, 1977
Pingree, David, Vettii Valentis Antiocheni anthologiarum libri novem, B.G. Teubner, Leipzig, 1986.
Ptolemy, Tetrabiblos, ed. and trans. F. E. Robbins, Harvard University Press, Cambridge, MA, 1940.
Rhetorius the Egyptian, trans. James Herschel Holden, American Federation of Astrologers, Tempe, Arizona, 2009.
Schmidt, Robert (trans.) and Robert Hand (ed.). The Astrological Record of the Early Sages in Greek, The Golden Hind Press, Berkeley Springs, WV, 1995.
Vettius Valens, The Anthology, Book V & VI, trans. Robert Schmidt, ed. Robert Hand, The Golden Hind Press, Cumberland, MD, 1997.
Vettius Valens, The Anthology, trans. Mark T. Riley, online, December, 2010.