"Baa" in the word "Bismillah" stands for which preposition?

"Baa" in the word "Bismillah" stands for which preposition?

بسم اللہ میں "با" خط کا کیا مطلب ہے؟
Explanation

The Arabic "Baa" (بِ) in "Bismillah" can mean with, in, or by depending on context.

It reflects seeking help or blessing through Allah's name.