It is narrated from Abu Hurayrah that the Messenger of Allah said: After the obligatory prayers, the most best prayer is the middle part of the night means “Tahajjud Prayer”.It is narrated from Abu Imam that the Messenger of Allah said: You must recite Tahajjud, Because this was the way of the righteous before you. This is the special means of nearness to Allah SWT. This prayer is to remove the evil effects of sins and prevents from sins. In this incident, four characteristics of Tahajjud prayers are mentioned:
It has been in the routine of the righteous servants of Allah since ancient times.
It is the means to attain nearness to Allah and to be close to Allah.
It is the expiation for sins and its effect. It has the property of preventing sins.
The Dua of the one who offers this prayer is accepted.