The word(s) "maintaining" appears 2 time(s) in 2 verse(s) in Quran in Saheeh International translation.

(1) Allah witnesses that there is no deity except Him, and [so do] the angels and those of knowledge - [that He is] maintaining [creation] in justice. There is no deity except Him, the Exalted in Might, the Wise.

(سورة آل عمران, Aal-i-Imraan, Chapter #3, Verse #18)
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(2) And this is a Book which We have sent down, blessed and confirming what was before it, that you may warn the Mother of Cities and those around it. Those who believe in the Hereafter believe in it, and they are maintaining their prayers.

(سورة الأنعام, Al-An'aam, Chapter #6, Verse #92)
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