2:238
حَـٰفِظُوا۟ عَلَى ٱلصَّلَوَٰتِ وَٱلصَّلَوٰةِ ٱلْوُسْطَىٰ وَقُومُوا۟ لِلَّهِ قَـٰنِتِينَ
ḥāfiẓū ʿalā l-ṣalawāti wal-ṣalati l-wus'ṭā waqūmū lillahi qānitīna
Take care to do your prayers, praying in the best way, and stand before God in devotion.
Guard strictly (five obligatory) As-Salawât (the prayers) especially the middle Salât (i.e. the best prayer - ‘Asr ). And stand before Allâh with obedience [and do not speak to others during the Salât (prayers)].