Why is location of the grave of Fatima not known?

The location of Fatimah's grave is not definitively known, and this has led to various interpretations and discussions among scholars. According to a narration found in Al-Kafi, a question was posed to al-Rida about the grave of Fatimah. He responded, I asked al-Rida, recipient of divine supreme covenant, about the grave of Fatimah, recipient of divine supreme covenant. He said, ‘She was buried in her own house. When the Amawids enlarged the Mosque it became part of the Mosque.’ Al-Kafi 114:1242.

This narration indicates that her grave was originally in her home, but as the Mosque was expanded, it became incorporated into the Mosque's structure. This change over time may have contributed to the uncertainty regarding the exact location of her grave today. The blending of her burial site with a significant religious structure likely obscured its precise identification, leading to the ongoing mystery surrounding her resting place.