[Machine] That the Messenger of Allah ﷺ used to encourage to perform the night prayer until he said, "Even if it is only one Rak'ah."  

أَنَّ رَسُولَ اللَّهِ ﷺ كَانَ يَرْغَبُ فِي قِيَامِ اللَّيْلِ حَتَّى قَالَ «وَلَوْ رَكْعَةً»