Why was Hazrat Fatemeh’s grave hidden ?!

Grand Ayatollah Yadollah Duzduzani Tabrizi Says:

1400 years have passed since then ….
Today it is said that the Prophet had a daughter, how is it that she was buried at night ?! How is it that no one was allowed to attend the funeral !?
Why was Hazrat Fatemeh’s grave hidden ?!
Therefore, she bequeathes her burial at night and her prayer at night
And she states that I am not satisfied that those who have wronged me and my leader Ali should attend my funeral …