I would like an explanation of the chapter "What Has Been Related About the Turban" in Imam Malik's book "Al-Muwatta."

Imam Malik's Al-Muwatta' mentions two narrations from 'Umar (may Allah be pleased with him) regarding the inheritance of the paternal aunt. In one, 'Umar wrote a document concerning her inheritance then erased it, saying: "Had Allah been pleased with her as an heir, He would have confirmed her." The second narration states his saying: "How astonishing for the paternal aunt, she inherits but is not inherited from." This indicates his perplexity, followed by his view that she does not inherit, because she is among the uterine relatives (dhawu al-arham) who do not have a prescribed share in revelation nor are they among the 'asabat (agnates).