There are many virtues of praying regularly:
1- Prayer is one of the most virtues acts in Islam, and most beloved to Almighty Allah.
It was narrated that `Abdullah ibn `Amr said: “The Messenger of Allah said: ‘Adhere to righteousness even though you will not be able to do all acts of virtue. Know that among the best of your deeds is prayer and that no one maintains his ablution except a believer.’” (Ibn Majah)
2- Prayer prevents immoral sins and evil deeds:
Almighty Allah says,
And establish prayer. Indeed, prayer prohibits immorality and wrongdoing. (Al-`Ankabut 29:45)
3- Prayer expiates sins:
Jabir (may Allah be pleased with him) reported: The Messenger of Allah (peace be upon him) said, “The similitude of the five (obligatory) Prayer is like a river running at the door of one of you in which he takes a bath five times a day.” (Muslim)
Abu Hurairah reported: The Prophet (peace be upon him) said, “The five daily (prescribed) Prayer, and Friday (prayer) to the next Friday (prayer), and the fasting of Ramadan to the next Ramadan, is expiation of the sins committed in between them, so long as major sins are avoided.” (Muslim)
4- Guarding prayer is light, proof, and salvation:
Abdullah ibn `Amr reported: The Prophet (peace be upon him) said, “Whoever guards his prayers will have light, proof, and salvation on the Day of Resurrection. Whoever does not guard his prayers will not have light, nor proof, nor salvation. On the Day of Resurrection, he will be with Qarun, Pharaoh, Haman, and Ubay ibn Khalaf.” (Musnad Ahmad)
5- Prayer elevates one’s ranks and expiates sins:
Thauban (May Allah be pleased with him) said: I heard Messenger of Allah (peace be upon him) saying, “Perform Salah more often. For every prostration that you perform before Allah will raise your position one degree and will remit one of your sins”. (Muslim)
6- It rescues from Hell, protects against danger, and enables a person to win Paradise:
It was narrated that the Prophet (peace be upon him) said: “The one who prays before sunrise (Fajr prayer) and before sunset (`Asr prayer) will not enter Hell Fire.” (Muslim)
To know more about the virtues of offering the five daily prayers on regular basis, watch this interesting talk with Dr. Muhammad Salah.
Source: Huda Youtube Channel.