كتاب الصلاة
2  
The Book of Prayer
Bulugh al-Maram 326
Narrated Abu Umamah (RA):
Allah's Messenger (ﷺ) said: "Whoever recites Ayat al-Kursi at the end of every obligatory prayer, nothing but death will prevent him from entering Paradise." [An-Nasa'i reported it, and Ibn Hibban graded it Sahih (authentic).
وَعَنْ أَبِي أُمَامَةَ ‏- رضى الله عنه ‏- قَالَ : قَالَ رَسُولُ اَللَّهِ ‏- صلى الله عليه وسلم ‏-{ مَنْ قَرَأَ آيَةَ اَلْكُرْسِيِّ دُبُرَ كُلِّ صَلَاةٍ مَكْتُوبَةٍ لَمْ يَمْنَعْهُ مِنْ دُخُولِ اَلْجَنَّةِ إِلَّا اَلْمَوْتُ } رَوَاهُ النَّسَائِيُّ , وَصَحَّحَهُ اِبْنُ حِبَّانَ .‏ 1
Reference : Bulugh al-Maram 326
In-book reference : Book 2, Hadith 326
English translation : Book 2, Hadith 324
Bulugh al-Maram 326
at-Tabarani has the addition:
"Say [O Muhammad (ﷺ)]: "He is Allah, (the) One. (Surat al-lkhlas - Surat No. 112)
وَزَادَ فِيهِ اَلطَّبَرَانِيُّ : { وَقُلْ هُوَ اَللَّهُ أَحَدٌ } 1
Reference : Bulugh al-Maram 326
In-book reference : Book 2, Hadith 326
Hadith Text
Reference