Source: Fatawa ‘Ilmiyyah, Volume 1, Kitab al-Salah, Page 468
Is the hadith that promises entry into Paradise for reciting Āyat al-Kursī after every obligatory prayer authentic?
(Asked by: A Questioner)
Al-ḥamdu lillāh, waṣ-ṣalātu was-salāmu ʿalā Rasūlillāh, ʾammā baʿd!
Narrated in the works of Imām al-Nasā’ī رحمه الله:
◈ As-Sunan al-Kubrā (Hadith 9928)
◈ ʿAmal al-Yawm wa al-Laylah (Hadith 100)
The Prophet ﷺ said:
"من قرأ آية الكرسي في دبر كل صلاة مكتوبة لم يمنعه من دخول الجنة إلا أن يموت"
“Whoever recites Āyat al-Kursī after every obligatory prayer, nothing prevents him from entering Paradise except death.”
✔ The chain of narration (isnād) is ḥasan (sound).
✔ Imām Ibn Ḥibbān رحمه الله also authenticated this hadith.
Reference:
✔ The hadith is authentic and holds a great virtue:
Whoever consistently recites Āyat al-Kursī after every fard (obligatory) prayer, Paradise awaits him, with only death standing in the way.
Therefore, this Sunnah practice should be regularly observed, as it holds an immense reward and a strong promise of salvation.
ـــ ❖ ـــ
ھٰذَا مَا عِندِي وَاللّٰهُ أَعْلَمُ بِالصَّوَاب
❖ Question:
Is the hadith that promises entry into Paradise for reciting Āyat al-Kursī after every obligatory prayer authentic?
(Asked by: A Questioner)
✿ Answer:
Al-ḥamdu lillāh, waṣ-ṣalātu was-salāmu ʿalā Rasūlillāh, ʾammā baʿd!
✦ The Virtue of Āyat al-Kursī After Salah
Narrated in the works of Imām al-Nasā’ī رحمه الله:
◈ As-Sunan al-Kubrā (Hadith 9928)
◈ ʿAmal al-Yawm wa al-Laylah (Hadith 100)
The Prophet ﷺ said:
"من قرأ آية الكرسي في دبر كل صلاة مكتوبة لم يمنعه من دخول الجنة إلا أن يموت"
“Whoever recites Āyat al-Kursī after every obligatory prayer, nothing prevents him from entering Paradise except death.”
✿ Authenticity of the Hadith
✔ The chain of narration (isnād) is ḥasan (sound).
✔ Imām Ibn Ḥibbān رحمه الله also authenticated this hadith.

- Ittiḥāf al-Maharah (Vol. 6, p. 259, Hadith No. 648)
Shahādat, October 1999 Edition
Conclusion:
✔ The hadith is authentic and holds a great virtue:
Whoever consistently recites Āyat al-Kursī after every fard (obligatory) prayer, Paradise awaits him, with only death standing in the way.

ـــ ❖ ـــ
ھٰذَا مَا عِندِي وَاللّٰهُ أَعْلَمُ بِالصَّوَاب