What is meant here
The claim is that brothers and sisters do not inherit in every estate, but rather in the case that the material calls “kalala.” The material explains this case as the absence of ascendants and descendants.
This is an account limited to the available evidence, not a definitive statement of the original text.
What is attributed to Shahrur
The available material attributes to Shahrur the view that the inheritance of brothers and sisters is conditional on the case of kalala, that is, the absence of ascendants and descendants.
The current evidence establishes no more than this general restriction; it is a paraphrase connected to Episode 27, and no verbatim text from the episode is provided.
Atlas explanation
In reading this claim within the page, the restriction is the focus: siblinghood is not treated as a general ground for inheritance, but as connected to a specific case as the material describes it.
For context related to the episode source, see الحلقة 27. For review at the level of the books that the page connects to the material, see Toward New Foundations for Islamic Jurisprudence and The Mother of the Book and Its Elaboration.
Limited inference
If the paraphrase is confirmed by returning to the source, its direct implication is that the presence of ascendants or descendants excludes brothers and sisters from the case that the claim links to their inheritance. This is an inference from the definition of kalala in the summary, not an independent verbatim quotation.
Open question and limits of the evidence
The current evidence does not include verbatim text establishing the definition of kalala or the detailed shares attributed to brothers and sisters. It is therefore necessary to return to the original episode and the related books before making a precise academic citation or building a detailed juristic account on this claim.