The text warns that some Qurʾānic spellings agree with their recited form while others differ. Such differences never give permission to add or remove sounds at will: pronunciation follows the transmitted reading.
A useful exercise is to compare the muṣḥaf spelling with a trustworthy recitation and identify where the written form differs from everyday orthography, without deriving new phonetic rules from appearance alone.
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Script cannot always be read mechanically
Conclusion: Tajwīd, Waqf, ʿUthmānic Rasm and Qirāʾāt
The text warns that some Qurʾānic spellings agree with their recited form while others differ. Such differences never give permission to add or remove sounds at will: pronunciation follows the transmitted reading.
A useful exercise is to compare the muṣḥaf spelling with a trustworthy recitation and identify where the written form differs from everyday orthography, without deriving new phonetic rules from appearance alone.