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.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
abudawud:1016 – Hārūn b. ʿAbdullāh > Hāshim b. al-Qāsim > ʿIkrimah b. ʿAmmār > Ḍamḍam b. Jaws al-Hiffānī > Abū Hurayrah Bihadhā al-Khabar

Abu Hurairah reported; He then made two prostration on account of forgetfulness after he had given the salutation.  

أبو داود:١٠١٦ – حَدَّثَنَا هَارُونُ بْنُ عَبْدِ اللَّهِ حَدَّثَنَا هَاشِمُ بْنُ الْقَاسِمِ حَدَّثَنَا عِكْرِمَةُ بْنُ عَمَّارٍ عَنْ ضَمْضَمِ بْنِ جَوْسٍ الْهِفَّانِيِّ حَدَّثَنِي أَبُو هُرَيْرَةَ بِهَذَا الْخَبَرِ قَالَ

ثُمَّ سَجَدَ سَجْدَتَىِ السَّهْوِ بَعْدَ مَا سَلَّمَ  

See similar narrations below:

Collected by Muslim, Nasāʾī, Aḥmad, Nasāʾī's Kubrá, Suyūṭī
muslim:572m – [Chain 1] Abū Bakr b. Abū Shaybah And ʾAbū Kurayb > Abū Muʿāwiyah [Chain 2] Ibn Numayr > Ḥafṣ And ʾAbū Muʿāwiyah > al-Aʿmash > Ibrāhīm > ʿAlqamah > ʿAbdullāh

The Apostle of Allah ﷺ performed two prostrations for forgetfulness after salutation and talking.  

مسلم:٥٧٢m – وَحَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ وَأَبُو كُرَيْبٍ قَالاَ حَدَّثَنَا أَبُو مُعَاوِيَةَ ح قَالَ وَحَدَّثَنَا ابْنُ نُمَيْرٍ حَدَّثَنَا حَفْصٌ وَأَبُو مُعَاوِيَةَ عَنِ الأَعْمَشِ عَنْ إِبْرَاهِيمَ عَنْ عَلْقَمَةَ عَنْ عَبْدِ اللَّهِ

أَنَّ النَّبِيَّ ﷺ سَجَدَ سَجْدَتَىِ السَّهْوِ بَعْدَ السَّلاَمِ وَالْكَلاَمِ  

nasai:1329 – Muḥammad b. Ādam > Ḥafṣ > al-Aʿmash > Ibrāhīm > ʿAlqamah > ʿAbdullāh

The Prophet ﷺ said the salam, then he spoke, then he performed two prostrations of forgetfulness.  

النسائي:١٣٢٩ – أَخْبَرَنَا مُحَمَّدُ بْنُ آدَمَ عَنْ حَفْصٍ عَنِ الأَعْمَشِ عَنْ إِبْرَاهِيمَ عَنْ عَلْقَمَةَ عَنْ عَبْدِ اللَّهِ

أَنَّ النَّبِيَّ ﷺ سَلَّمَ ثُمَّ تَكَلَّمَ ثُمَّ سَجَدَ سَجْدَتَىِ السَّهْوِ  

ahmad:10887 – Ḥammād / Ibn Khālid > Mālik > Dāwud / Ibn al-Ḥuṣayn > Abū Sufyān > Abū Hurayrah

[Machine] The Prophet Muhammad ﷺ performed the two prostrations of forgetfulness after the greeting of peace.  

أحمد:١٠٨٨٧ – حَدَّثَنَا حَمَّادٌ يَعْنِي ابْنَ خَالِدٍ حَدَّثَنَا مَالِكٌ عَنْ دَاوُدَ يَعْنِي ابْنَ الْحُصَيْنِ عَنْ أَبِي سُفْيَانَ عَنْ أَبِي هُرَيْرَةَ قَالَ

سَجَدَ رَسُولُ اللهِ ﷺ سَجْدَتَيِ السَّهْوِ بَعْدَ السَّلَامِ  

nasai-kubra:1253 – Muḥammad b. Ādam > Ḥafṣ > al-Aʿmash > Ibrāhīm > ʿAlqamah > ʿAbdullāh

The Prophet ﷺ said the salam, then he spoke, then he performed two prostrations of forgetfulness. (Using translation from Nasāʾī 1329)  

الكبرى للنسائي:١٢٥٣ – أَخْبَرَنِي مُحَمَّدُ بْنُ آدَمَ عَنْ حَفْصٍ عَنِ الْأَعْمَشِ عَنْ إِبْرَاهِيمَ عَنْ عَلْقَمَةَ عَنْ عَبْدِ اللهِ

أَنَّ النَّبِيَّ ﷺ «سَلَّمَ ثُمَّ تَكَلَّمَ ثُمَّ سَجَدَ سَجْدَتَيِ السَّهْوِ»  

nasai-kubra:599 – Muḥammad b. Ādam > Ḥafṣ > Ibn Ghiyāth > al-Aʿmash > Ibrāhīm > ʿAlqamah > ʿAbdullāh

The Prophet ﷺ said the salam, then he spoke, then he performed two prostrations of forgetfulness. (Using translation from Nasāʾī 1329)  

الكبرى للنسائي:٥٩٩ – أَخْبَرَنِي مُحَمَّدُ بْنُ آدَمَ عَنْ حَفْصٍ هُوَ ابْنُ غِيَاثٍ عَنِ الْأَعْمَشِ عَنْ إِبْرَاهِيمَ عَنْ عَلْقَمَةَ عَنْ عَبْدِ اللهِ

أَنَّ النَّبِيَّ ﷺ «سَلَّمَ ثُمَّ تَكَلَّمَ ثُمَّ سَجَدَ سَجْدَتَيِ السَّهْوِ»