Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
suyuti:2023a
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السيوطي:٢٠٢٣a

"إذا سهَا الإمامُ فاستتَمَّ قَائِمًا فعليه سجدْتَا السّهْو، وإذا لمْ يَسْتتِمَّ قَائِمًا فلا سَهْوَ علَيه" .  

[طب] الطبرانى في الكبير عن المغيرة

See similar narrations below:

Collected by Aḥmad, Ṭabarānī
ahmad:18223Ḥajjāj > Sufyān > Jābir > al-Mughīrah b. Shibl > Qays b. Abū Ḥāzim > al-Mughīrah b. Shuʿbah

“The Messenger of Allah ﷺ said: ‘If anyone of you stands after two Rak’ah, if he has not yet stood up fully, let him sit down again, but if he has stood up fully, then let him not sit down, and let him perform two prostrations for forgetfulness (Sahw).’” (Using translation from Ibn Mājah 1208)   

أحمد:١٨٢٢٣حَدَّثَنَا حَجَّاجٌ قَالَ سَمِعْتُ سُفْيَانَ عَنْ جَابِرٍ عَنِ الْمُغِيرَةِ بْنِ شِبْلٍ عَنْ قَيْسِ بْنِ أَبِي حَازِمٍ عَنِ الْمُغِيرَةِ بْنِ شُعْبَةَ قَالَ

قَالَ رَسُولُ اللهِ ﷺ إِذَا قَامَ أَحَدُكُمْ فَلَمْ يَسْتَتِمَّ قَائِمًا فَلْيَجْلِسْ وَإِذَا اسْتَتَمَّ قَائِمًا فَلَا يَجْلِسْ وَيَسْجُدُ سَجْدَتَيِ السَّهْوِ  

tabarani:18145ʿAbdullāh b. Muḥammad b. Saʿīd b. Abū Maryam > Muḥammad b. Yūsuf al-Firyābī > Sufyān > Jābir > al-Mughīrah b. Shibl > Qays b. Abū Ḥāzim > al-Mughīrah b. Shuʿbah

[Machine] The Messenger of Allah ﷺ said, "If the imam makes a mistake and rectifies it while standing, then he should perform the two prostrations of forgetfulness. But if he does not rectify it while standing, then there is no obligation upon him for prostrations of forgetfulness."  

الطبراني:١٨١٤٥حَدَّثَنَا عَبْدُ اللهِ بْنُ مُحَمَّدِ بْنِ سَعِيدِ بْنِ أَبِي مَرْيَمَ ثنا مُحَمَّدُ بْنُ يُوسُفَ الْفِرْيَابِيُّ ثنا سُفْيَانُ عَنْ جَابِرٍ عَنِ الْمُغِيرَةِ بْنِ شِبْلٍ عَنْ قَيْسِ بْنِ أَبِي حَازِمٍ عَنِ الْمُغِيرَةِ بْنِ شُعْبَةَ قَالَ

قَالَ رَسُولُ اللهِ ﷺ «إِذَا سَهَا الْإِمَامُ فَاسْتَتَمَّ قَائِمًا فَعَلَيْهِ سَجْدَتَا السَّهْوِ وَإِذَا لَمْ يَسْتَتِمَّ قَائِمًا فَلَا سَهْوَ عَلَيْهِ»