Fathwa, - Meaning of Wallaahi, Billaahi and Tallaahi

Question
Es selamu alejkum May Allah reward you for your work. I want you to
ask you, what does the word ''Wallahi Billahi Tallahi'' means? Thank
you for the answer.
Answer
All perfect praise be to Allaah, The Lord of the Worlds. I testify
that there is none worthy of worship except Allaah, and that
Muhammadis His slave and Messenger.
The three words have different meanings depending on their context in
speech. They may be said and mean swearing by Allaah, because the
Arabic letters Waaw, Baa'a, Taa'a are used for swearing, so if a
person says Wallaahi, Billaahi, or Tallaahi, it means that he swears
by Allaah or makes an oath by Allaah.
On the other hand, if the word "Allaah" is preceded by the letter Waaw
or Baa'a, then it could mean other than swearing. For example, if
someone says "Ista'antu Billaah", i.e. I seek help from Allaah, then
the letter Baa'a here is for seeking help.
Likewise, the letter Waaw could mean Ist'inaaf )i.e. to indicate
beginning a new sentence to make a different point(; like the saying
of Allaah "Wallaahu Rau'oofun Bil Ibaad" )which means(: }And Allaah is
Kind to ]His[ servants.{]Quran 2:207[
As regards the letter Taa'a, if it is added to the word "Allaah", it
only means swearing by Allaah.
Allah Knows best.