imam as-Suyuti quoted beside this 19 different opinions on what actually this name might be or how to interpret these ahadith in his al-Hawi lil Fatwai الحاوي للفتاويالحاوي للفتاوي some of these interpretations are based on ahadith like the one quoted above here some other narrations:
- “Allah's greatest name is in these two Ayah: ‘And your deity is One deity, there is none who has the right to be worshipped but He, Ar-Raḥmān, Ar-Raḥīm.’ And the Opening of Al-`Imrān: ‘Alif. Lām. Mīm. Allah, None has the right to be worshipped but He, the Ever living, the Sustainer.’”
(Jami' at-Tirmidhi, sunan abi Dawood and sunan ibn Majah)
- The Messenger of Allah (ﷺ) heard a man saying: O Allah, I ask Thee, I bear witness that there is no god but Thou, the One, He to Whom men repair, Who has not begotten, and has not been begotten, and to Whom no one is equal, and he said: You have supplicated Allah using His Greatest Name, when asked with this name He gives, and when supplicated by this name he answers. (Jami' at-Tirmidhi, sunan abi Dawood and sunan ibn Majah)
- The Messenger of Allah (ﷺ) heard a man saying: O Allah, I ask Thee, I bear witness that there is no god but Thou, the One, He to Whom men repair, Who has not begotten, and has not been begotten, and to Whom no one is equal, and he said: You have supplicated Allah using His Greatest Name, when asked with this name He gives, and when supplicated by this name he answers. (Jami' at-Tirmidhi, sunan abi Dawood and sunan ibn Majah)
- I was sitting with the Messenger of Allah (ﷺ) and a man was offering prayer. He then made supplication: O Allah, I ask Thee by virtue of the fact that praise is due to Thee, there is no deity but Thou, Who showest favour and beneficence, the Originator of the Heavens and the earth, O Lord of Majesty and Splendour, O Living One, O Eternal One.
The Prophet (ﷺ) then said: He has supplicated Allah using His Greatest Name, when supplicated by this name, He answers, and when asked by this name He gives.
(Sunan abi Dawod]13, sunan an-Nasa'i and sunan ibn Majah)