Surah Al-Baqarah Verse 238

حَافِظُوا عَلَى الصَّلَوَاتِ وَالصَّلَاةِ الْوُسْطَىٰ وَقُومُوا لِلَّهِ قَانِتِينَ

Maintain with care the [obligatory] prayers and [in particular] the middle prayer and stand before Allah, devoutly obedient