however from shia references:
Sheikh Sadooq in Ilal ul Sharayeh from Imam Sadiq a.s.
in Misbah ul Anwar from Imam Baqar a.s.
Both Imam said:
I asked: "why Fatima tu Zahra has been named Zeha?
he repkied: "Because Allah the almighty has created her with his noor of greatness"
The cause of naming Fatimaas Zahra is because Allah has created her
with his noor of greatness
this is her starting and that is her ending
starting this, end that
here is full confusion
origin, creation from the noor of Allah
end: First one who will enter the paradise
after its creation (that noor) lightened up.
then it lightened
it lightened what?
and then it lightened skies and earth
and eyes of the angels got blinded
and all the angels postrated infront of Allah. All the angels postrated infront of Allah due to the light of Siddiqua
they asked: our master this light is for what?
then Allah relevated on them
the explanation of the hadith some time later but the intellectuals should ponder on these words
then Allah relevated on them: this light is from my light
itself light, from my light
this light is from my light
I will make it stay in my sky
I have made sky its place
I have created it with my greatness.. From my greatness
who is al Ali ul Azeem?
I have created Fatima with such greatness
I will produce it
from where?
from the sibling of one of the prophets who is the superior to all of them
pearl of this gem must be the most superior sibling of Adam
conclusion is also this.
and I will generate from this light.. I will produce form the same light whose name is Fatima
Imams who will be selected with my orders
will guide towards my truth
and I will regard them as my caliphs on the earth after the discontination of the revelation
I will generate Imams from this light
origin this, end that, and in the middle this