Chapter on the Detailed Explanation of Prayer, Including the Obligatory and Recommended, and What is Permissible and Not Permissible.

Tahdhīb al-Aḥkām|Volume 2|Book 1|Chapter 9

Tahdhīb al-Aḥkām

Volume 2, Book 1, Chapter 9

Chapter on the Detailed Explanation of Prayer, Including the Obligatory and Recommended, and What is Permissible and Not Permissible.

Hadith #89

وَ عَنْهُ عَنْ عَلِيِّ بْنِ اَلْحَكَمِ عَنْ أَبِي أَيُّوبَ عَنْ أَبِي بَصِيرٍ قَالَ: سَمِعْتُ يُذْكَرُ عِنْدَ أَبِي عَبْدِ اَللَّهِ عَلَيْهِ اَلسَّلاَمُ قَالَ «فِي اَلرَّجُلِ إِذَا سَهَا فِي اَلْقُنُوتِ قَنَتَ بَعْدَمَا يَنْصَرِفُ وَ هُوَ جَالِسٌ»

And from him, from Ali ibn al-Hakam, from Abu Ayyub, from Abu Basir, who said: I heard it mentioned in the presence of Abu Abdillah . Imam said: "Regarding a man who forgets the ‘qunut’, he should perform the ‘qunut’ after he finishes (the prayer), while he is seated."

Ali Akbar al-Ghaffari
Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 2, p. 171