Is it permissible to add the definite article "al-" when supplicating with the Beautiful Names of Allah, such as "Ya Al-Ghafour" and "Ya Ar-Rahman"?

When calling upon Allah by His Beautiful Names, such as "the All-Forgiving" (Al-Ghafour) or "the All-Merciful" (Ar-Rahman), it is preferable to omit the definite article "al-", saying: "Ya Ghafour" or "Ya Rahman".

Grammarians have differed regarding the permissibility of combining the vocative particle "Ya" with the definite article "al-":

The first opinion: This is the view of the Basra grammarians, who hold that it is impermissible to combine them except in specific situations: 1. When calling upon the name "Allah" (Ya Allah). 2. When calling out a quoted sentence that begins with "al-" (e.g., Ya ar-rajulu munTaliq — O, "the man is going!"). 3. In poetic necessity. The reason for this prohibition is to conform to the eloquent speech of the Arabs, which avoids the confluence of two apparent tools of definite articles.

The second opinion: This is the view of the Kufa grammarians, who permit combining the vocative particle "Ya" with "al-" in all cases.

Accordingly, combining the vocative particle "Ya" with "al-" for names other than "Allah" contradicts the majority opinion and the eloquent speech of the Arabs. Grammarians have stipulated that the name "Allah" was an exception due to its frequent usage, the necessity of "al-" for it, and the intention of magnifying the name. As for other names, the combination of "Ya" and "al-" is not common among Arab linguists.