For the beginning of Sūrat al-Tawbah, the text explicitly says not to recite the basmalah, whether the reading starts there or arrives there during an ongoing reading. It also instructs against inserting a fresh taʿawwudh upon entering that sūrah in the middle of an ongoing recitation.
Practical distinction:
Ordinary starts have their opening formulas.
The opening of Tawbah does not take basmalah.
Continuing into Tawbah does not call for another taʿawwudh.
Keep the wording limited to the cases actually described in this passage.
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Principle 5: the Tawbah exception
Etiquettes of Qurʾān Recitation — Sixteen Principles
For the beginning of Sūrat al-Tawbah, the text explicitly says not to recite the basmalah, whether the reading starts there or arrives there during an ongoing reading. It also instructs against inserting a fresh taʿawwudh upon entering that sūrah in the middle of an ongoing recitation.
Practical distinction:
Ordinary starts have their opening formulas.
The opening of Tawbah does not take basmalah.
Continuing into Tawbah does not call for another taʿawwudh.
Keep the wording limited to the cases actually described in this passage.