Why was Sunan al-Bayhaqi formerly called "Al-Sunan al-Kabir li al-Bayhaqi" while it is now called "Al-Sunan al-Kubra li al-Bayhaqi"?

Its most famous name is "As-Sunan al-Kabeer," as major scholars like Adh-Dhahabi, Ibn Katheer, As-Subki, and Ibn As-Salah called it by this name. It appeared in manuscript and printed editions. However, the well-known Indian edition in our time named it "As-Sunan al-Kubra."

Al-Bayhaqi did not assign either of these names to his book; rather, he simply called it "As-Sunan" in his other works and described it as "Sunan of Al-Mustafa, peace and blessings be upon him."

The other appellations, "Al-Kabeer" and "Al-Kubra," are additional descriptions given by scholars to the book to distinguish it from Al-Bayhaqi's "As-Sunan As-Sughra." The description "Al-Kabeer" describes the book itself, while "Al-Kubra" describes the Sunan it contains.