Sahih Muslim preserves the dispute in which Arwa accused Sa'id ibn Zayd, may Allah be pleased with him, over land and brought the matter before Marwan ibn al-Hakam. Sa'id cited the Prophet's peace and blessings be upon him warning against unjustly taking land and prayed conditionally that, if Arwa was lying, Allah would blind her and make her grave in her house or cause her to die on her own land. The same authentic report records that she later became blind, said that Sa'id's supplication had reached her, and eventually fell into a well or pit on the property and died there. Sahih al-Bukhari independently confirms the land-dispute and Prophetic-warning context.
After stating that Prophetic warning, Sa'id made a conditional supplication. He asked Allah that, if Arwa was lying in her accusation, she should be made blind and that her grave should be in her house, or, in the wording of a closely related authentic route, that she should die on her own land. The condition is important: the prayer was tied specifically to the possibility that her claim against him was false.
Sahih Muslim then preserves the reported fulfillment. The narrator says that Arwa later became blind and moved by feeling along the walls. She is also reported to have said that the supplication of Sa'id ibn Zayd had reached her. The account continues by saying that she later fell into a well or pit on the property and died there. The closely related Muslim routes preserve the same core sequence while using slightly different wording for the location of her death.
Sahih al-Bukhari independently confirms the underlying dispute and Sa'id's citation of the Prophetic warning concerning unlawful seizure of land. Bukhari does not preserve the full extraordinary outcome, so the complete prayer-and-fulfillment sequence should be attributed specifically to Sahih Muslim rather than flattened into one combined quotation.
The evidence for this candidate is therefore unusually strong for a karamah report. The central dispute, the conditional prayer, the later blindness, Arwa's own attribution of her condition to Sa'id's supplication, and her death after falling into the well or pit are all preserved in authentic Muslim routes. The strongest conclusion is that the hadith record itself presents a conditional prayer against a false accusation followed by a later outcome matching the terms of that prayer.
The public account should still preserve the route variants faithfully. “Grave in her house,” “death on her land,” and “well or pit” are closely related transmitted forms and should not be forced into one artificial wording. Within those boundaries, the report supports high-confidence inclusion as an extraordinary outcome associated with Sa'id ibn Zayd.
Conclusion
Sahih Muslim preserves Sa'id ibn Zayd's conditional prayer against a false land accusation and a later outcome in which Arwa became blind, attributed her condition to his supplication, and died after falling into a well or pit on the property. Because the prayer and its reported fulfillment are preserved in authentic routes, the event supports high-confidence inclusion.