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.
bayhaqi:3706Abū ʿAlī al-Rūdhbārī > Abū Bakr b. Dāsah > Abū Dāwud al-Sijistānī > Ruwī > Abū al-Dardāʾ

[Machine] About the Prophet ﷺ , he performed eleven prostrations and its chain of narration is authentic. The sheikh said, and it was narrated to us from Abu Darda that he prostrated twice during the Hajj.  

البيهقي:٣٧٠٦وَأَخْبَرَنَا أَبُو عَلِيٍّ الرُّوذْبَارِيُّ أنبأ أَبُو بَكْرِ بْنُ دَاسَةَ ثنا أَبُو دَاوُدَ السِّجِسْتَانِيُّ قَالَ رُوِيَ عَنْ أَبِي الدَّرْدَاءِ

عَنِ النَّبِيِّ ﷺ إِحْدَى عَشْرَةَ سَجْدَةً وَإِسْنَادُهُ وَاهٍ قَالَ الشَّيْخُ وَرُوِّينَاهُ عَنْ أَبِي الدَّرْدَاءِ أَنَّهُ سَجَدَ فِي الْحَجِّ سَجْدَتَيْنِ