The five prayers in the Noble Quran.

1- Salat Al-Fajr (Dawn Prayer):

"O you who have believed, let those whom your right hands possess and those who have not [yet] reached puberty among you ask permission of you [before entering] at three times: before the dawn prayer ...."-- an-Nur 24:58

"And establish prayer at the two ends of the day and at the approach of the night. Indeed, good deeds do away with misdeeds. That is a reminder for those who remember". -- Hud 11:114  

2- Salat Al-Dhuhr:

"Establish prayer at the decline of the sun [from its meridian] until the darkness of the night and [also] the Qur'an of dawn. Indeed, the recitation of dawn is ever witnessed. "-- 17:78

"And to Him belongs praise in the heavens and the earth, and at nightfall and when you are at midday." --30:18

3- Salat Al-Asr:

 

"Maintain with care the [obligatory] prayers and [in particular] the middle prayer and stand before Allah , devoutly obedient." 2:238

 4- Salat Al-Maghreb:

"And establish prayer at the two ends of the day and at the approach of the night. Indeed, good deeds do away with misdeeds. That is a reminder for those who remember". -- Hud 11:114  

5- Salat Al-Ishaa':

"O you who have believed, let those whom your right hands possess and those who have not [yet] reached puberty among you ask permission of you [before entering] at three times: before the dawn prayer and when you put aside your clothing [for rest] at noon and after the night (Ishaa') prayer. .." an-Nur 24:58