The Fourth Characteristic
وَالَّذِينَ يَبِيتُونَ لِرَبِّهِمْ سُجَّدًا وَقِيَامًا (and those who pass the night prostrating and standing before their Lord, - Al-Furqan 25:64 ⧉). Special mention of night worship is made here firstly, because this time being a time of rest, requires extra effort, and secondly because it rules out the possibility of showing one's worship to others. The idea is to express that they spend their day and night in submission before Allah during the day by teaching and spreading religious tenets and struggling in the way of Allah and at night by praying before Him. The sayings of the Holy Prophet ﷺ have extolled the night prayers (تَھَجّد). Tirmidhi has reported on the authority of Sayyidna Abu 'Umamah ؓ that the Holy Prophet ﷺ said, "Remain steadfast to your night prayers as this has been the practice of all righteous people before your time, and this will bring you closer to Allah Ta’ ala and will expiate the evils and keep you away from sins". (Mazhari)
Sayyidna Ibn ` Abbas ؓ has said that one who has offered two or more Rak'ats after 'Isha' prayers is also covered by the verse. (Mazhari from Bayhaqi and Sayyidna ` Uthman ؓ is reported to have observed that the Holy Prophet ﷺ has said that one who has offered his ` Isha' prayer with congregation would be regarded as having worshipped half the night and the one who has offered Fajr prayer with congregation would be regarded as having offered the other half of the night in prayers. (Ahmed and Muslim from Mazhari)