He is Self-Sufficient completely and unrestrictedly, deference is given to His perfection and the perfection of His Attributes. He has absolutely no deficiency of any kind, it is not possible that He be anything but self-sufficient, for self-sufficiency is from the necessary consequences of His Person. Similarly it is not possible for Him to be anything but the Creator, the All-Powerful, the Provider and the Bestower of good. He is not in need of anything or anyone, He is the Self-Sufficient in whose Hand lie the treasures of the heavens and the earth, and the treasures of this life and the Hereafter. He suffices for the whole of His creation, and is sufficient for the believers of His creation in that He confers upon their hearts nurturing knowledge and the realities of faith.
“Kind words and forgiving faults are better than giving in charity. Allah is the Ghani, the Forbearing.”
[al-Baqarah (2): 263]
“And your Lord is al-Ghani, full of Mercy. If He Will He could destroy you and in your place make who He Will to be successors, just as He raised you from the seed of another people.”
[al-An'am (6): 133]
From “Explanation to the Beautiful and Perfect Names of Allah” — Shaykh as-Sa’di (d.1376H)