Indeed, it is Allah who is the [continual] Provider, the firm possessor (51:58)

Almuntakhab Fi Tafsir Alquran Alkarim

For, indeed, Allah is He Who is the sole sustainer Who keeps the whole and all in all in existence and causes them to continue in a certain state; the Omnipotent Who does not grow weary and He is the Sole authority to Whom belongs the controlling power over the universe

Tafseer Tafheem-ul-Quran by Syed Abu-al-A'la Maududi

(51:58) Surely Allah is the Bestower of all provision, the Lord of all power, the Strong. *55

Indeed, it is Allah who is the [continual] Provider, the firm possessor meaning

*55) The word matin as used in the original means strong and stable whom nobody can shake and move.
 

Indeed, it is Allah who is the [continual] Provider, the firm possessor meaning in Urdu

اللہ تو خود ہی رزاق ہے، بڑی قوت والا اور زبردست