Has Allah's Greatest Name not been mentioned in the Qur'an and Sunnah? Is there a difference of opinion among scholars regarding it? And if it were known, would other acts of worship be abandoned, taking into consideration the Hadith "Ya Hayyu Ya Qayyum" and the example of Laylat al-Qadr?

The Greatest Name of Allah (Ism al-A'dham) is mentioned in the Quran and the Sunnah, but it has not been specified for us. Scholars have differed in identifying it, and the preponderant opinion is that it is the name "Allah." The wisdom behind concealing it, similar to concealing Laylat al-Qadr (the Night of Power) and the hour of acceptance for supplications, is so that the servant remains connected to his Lord, supplicating to Him at all times and by all His names.