Surah Al-Baqarah, ayah 238

2:238

حَٰفِظُواْ عَلَى ٱلصَّلَوَٰتِ وَٱلصَّلَوٰةِ ٱلۡوُسۡطَىٰ وَقُومُواْ لِلَّهِ قَٰنِتِينَ ٢٣٨

Hāfizū 'alas-salawāti was-salawātil-wustā waqūmū lillāhi qānitīn

Maintain with care the [obligatory] prayers and [in particular] the middle [i.e., ʿaṣr] prayer and stand before Allāh, devoutly obedient.