He is Allah; there is no god or godhood, only ‘HU’ (the Name HU denotes the Absolute Essence, which can never be conditioned or limited by the corporeal worlds and/or any concepts. It is usually followed by another Name to signify the quality that becomes manifest through HU, in regards to the relevant topic), Hayy (life itself) and Qayyum (everything finds life and subsists with HU).
Sayyed Abbas Sadr-Ameli
Allah, there is no god but He, the Ever-Living, the Self-Subsisting (the Sustainer of all things)
Al-muntakhab fi tafsir al-Qur'an al-Karim
Allah, there is no Ilah but He, the Eternal, the Absolute Purveyor of sustenance for all and AL-Qayum (Omnipotent Who preserves existence)