What is the claim here?
Within the limits of the available material, the point is not to deny every clarification attributed to the Messenger; rather, it is to deny that he provided a comprehensive explanation of the entire Qur’an or that he authored the text. Extending this to «الرسالة كلها» (“the entire Message”) requires a direct text, because the current evidence does not state it in those terms.
What is attributed to Shahrour
The material associated with the first episode attributes to Shahrour the view that the Messenger’s task was «البلاغ والبيان العملي» (“conveyance and practical clarification”) in some matters, not explaining the entire Qur’an or authoring it.
This attribution is based on an editorial paraphrase, not on a verbatim quotation from the episode or from a book by Shahrour; therefore, it must not be presented as a documented statement in his exact words.
Atlas explanation
The record distinguishes between two matters: the existence of practical clarification in some issues, and the claim of a comprehensive explanation of the Qur’an. The available material establishes the former and the latter only at the level of a summary, and does not explain which issues are meant or what criterion distinguishes clarification from explanation.
The review is connected to the following contexts: the first episode, The Book and the Qur’an, The Mother of the Book and Its Elaboration, and A Guide to the Contemporary Reading of the Wise Revelation. These are follow-up links, not direct evidence in this record.
Conclusion
The available evidence does not establish a broader claim that attributing every interpretation to the Prophet is invalid, nor does it support a detailed judgment on the Messenger’s relationship to the Sunnah or to the Message. At most, what can currently be presented is a summary requiring verification that attributes to Shahrour a rejection of comprehensive explanation of the Qur’an and of attributing authorship to the Messenger.
Open question
What is the verbatim text in the first episode that defines the meaning of «البيان العملي» (“practical clarification”)? Does Shahrour use «الرسالة» (“the Message”) rather than «القرآن» (“the Qur’an”) in the same passage, or does he draw an explicit boundary between them? The supplied source does not settle this.