There are several schools of Quranic
recitation, all of which teach possible pronunciations of the
Uthmanic
rasm: Seven reliable, three
permissible and (at least) four uncanonical – in 8
sub-traditions each – making for 80 recitation variants
altogether.
A canonical recitation must satisfy three conditions:
- It must match the rasm, letter for
letter.
- It must conform with the syntactic
rules of the
Arabic language.
- It must have a continuous
isnad to
Muhammad through
tawatur, meaning that it
has to be related by a large group of people to another down
the isnad chain.
These recitations differ in the
vocalization (tashkil)
of a few words, which in turn gives a complementary meaning to
the word in question according to the rules of Arabic grammar.
For example, the vocalization of a verb can change its active
and passive voice. It can also change its
stem formation, implying
intensity for example. Vowels may be elongated or shortened, and
glottal stops (hamzas)
may be added or dropped, according to the respective rules of
the particular recitation. For example, the name of archangel
Gabriel is pronounced
differently in different recitations: Jibrīl, Jabrīl, Jibra'īl,
and Jibra'il. The name "Qur’an" is pronounced without the
glottal stop (as "Qur’an") in one recitation, and prophet
Abraham's name is pronounced
Ibrāhām in another. The more widely used narrations
are those of
Hafss (حفص عن عاصم),
Warsh (ورش عن نافع),
Qaloon (قالون عن نافع) and
Al-Duri according to
Abu `Amr (الدوري عن أبي عمرو).
Muslims firmly believe that all canonical recitations were
recited by Muhammad himself, citing the respective
isnad chain of narration, and
accept them as valid for worshipping and as a reference for
rules of
Sharia. The uncanonical
recitations are called "explanatory" for their role in giving a
different perspective for a given verse or
ayah. Today several dozen
persons hold the title "Memorizer of the Ten Recitations." This
is considered a great accomplishment amongst Muslims.