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:3764Abū ʿAbdullāh al-Ḥāfiẓ > Abū Bakr b. Isḥāq > al-ʿAbbās b. al-Faḍl > Yūsuf b. Mūsá > Wahbb. Jarīr > Shuʿbah > Abū Isḥāq > al-Aswad

[Machine] If he wants, he can perform the bowing and if he wants, he can perform the prostration, then he stands up, recites, bows, and prostrates.  

البيهقي:٣٧٦٤أَخْبَرَنَا أَبُو عَبْدِ اللهِ الْحَافِظُ أنبأ أَبُو بَكْرِ بْنُ إِسْحَاقَ أنبأ الْعَبَّاسُ بْنُ الْفَضْلِ ثنا يُوسُفُ بْنُ مُوسَى ثنا وَهْبُ بْنُ جَرِيرٍ ثنا شُعْبَةُ عَنْ أَبِي إِسْحَاقَ عَنِ الْأَسْوَدِ عَنْ عَبْدِ اللهِ فِي الرَّجُلِ يَقْرَأُ السُّورَةَ آخِرُهَا السَّجْدَةُ قَالَ

إِنْ شَاءَ رَكَعَ وَإِنْ شَاءَ سَجَدَ ثُمَّ قَامَ فَقَرَأَ وَرَكَعَ وَسَجَدَ