The Reward of the Night Prayer
Man Lā Yaḥḍuruh al-Faqīh|Volume 1|Book 1|Chapter 65
وَقَالَ أَمِيرُ اَلْمُؤْمِنِينَ عَلَيْهِ اَلسَّلاَمُ: «إِنَّ اَللَّهَ تَبَارَكَ وتَعَالَى إِذَا أَرَادَ أَنْ يُصِيبَ أَهْلَ اَلْأَرْضِ بِعَذَابٍ قَالَ لَوْ لاَ اَلَّذِينَ يَتَحَابُّونَ بِجَلاَلِي وَ يَعْمُرُونَ مَسَاجِدِي وَ يَسْتَغْفِرُونَ بِالْأَسْحَارِ لَوْ لاَ هُمْ لَأَنْزَلْتُ عَذَابِي.
The Commander of the Faithful Imam Ali ibn Abi Talib عليه السلام said: "Indeed, when Allah سبحانه وتعالى, Blessed and Exalted, intends to afflict the people of the earth with punishment, He says, 'Were it not for those who love one another for My Majesty, who populate My mosques, and who seek forgiveness during the pre-dawn hours, I would surely send down My punishment.'" '"
- Ṣaḥīḥ al-Faqīh