Sunan Ibn Majah 798
It was narrated from 'Umar bin Khattab that:
The Prophet used to say: "Whoever performs prayer in congregation at the mosque for forty nights, never missing the first Rak'ah of the 'Isha' prayer, Allah will thereby decree for him salvation from the Fire."
حَدَّثَنَا عُثْمَانُ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا إِسْمَاعِيلُ بْنُ عَيَّاشٍ، عَنْ عُمَارَةَ بْنِ غَزِيَّةَ، عَنْ أَنَسِ بْنِ مَالِكٍ، عَنْ عُمَرَ بْنِ الْخَطَّابِ، عَنِ النَّبِيِّ ـ ﷺ ـ أَنَّهُ كَانَ يَقُولُ " مَنْ صَلَّى فِي مَسْجِدٍ جَمَاعَةً أَرْبَعِينَ لَيْلَةً لاَ تَفُوتُهُ الرَّكْعَةُ الأُولَى مِنْ صَلاَةِ الْعِشَاءِ كَتَبَ اللَّهُ لَهُ بِهَا عِتْقًا مِنَ النَّارِ " .
Classification
Da`eef (Weak) [Darussalam]
References
Sunan Ibn Majah 798
Sunan Ibn Majah Vol. 1, Book of On The Mosques And The Congregations, Hadith 798