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.
abudawud:965Qutaybah > Ibn Lahīʿah > Yazīd b. Abū Ḥabīb > Muḥammad b. ʿAmr b. Ḥalḥalah > Muḥammad b. ʿAmr al-ʿĀmirī

I was sitting in the company( of the Companions). He then narrated this tradition saying: When he(the Prophet) sat up after two rak’ahs, he sat on the sole of his left foot and raised his left foot. When he sat up after four rak’ahs, he placed his left hip on the ground and put out his both feet on one side.  

أبو داود:٩٦٥حَدَّثَنَا قُتَيْبَةُ حَدَّثَنَا ابْنُ لَهِيعَةَ عَنْ يَزِيدَ بْنِ أَبِي حَبِيبٍ عَنْ مُحَمَّدِ بْنِ عَمْرِو بْنِ حَلْحَلَةَ عَنْ مُحَمَّدِ بْنِ عَمْرٍو الْعَامِرِيِّ قَالَ كُنْتُ فِي مَجْلِسٍ بِهَذَا الْحَدِيثِ قَالَ

فِيهِ فَإِذَا قَعَدَ فِي الرَّكْعَتَيْنِ قَعَدَ عَلَى بَطْنِ قَدَمِهِ الْيُسْرَى وَنَصَبَ الْيُمْنَى فَإِذَا كَانَتِ الرَّابِعَةُ أَفْضَى بِوَرِكِهِ الْيُسْرَى إِلَى الأَرْضِ وَأَخْرَجَ قَدَمَيْهِ مِنْ نَاحِيَةٍ وَاحِدَةٍ  


See similar narrations below:

Collected by Bayhaqī
bayhaqi:2773Abū Zakariyyā b. Abū Isḥāq al-Muzakkī And ʾAbū Bakr Aḥmad b. al-Ḥasan al-Qāḍī > Abū al-ʿAbbās Muḥammad b. Yaʿqūb > Baḥr b. Naṣr > Quriʾ > Ibn Wahb Akhbarak Ibn Lahīʿah > Yazīd b. Abū Ḥabīb And ʿAbd al-Karīm b. al-Ḥārith > Muḥammad b. ʿAmr b. Ḥalḥalah al-Dīlī > Muḥammad b. ʿAmr b. ʿAṭāʾ > Abū Ḥumayd al-Sāʿidī

I was sitting in the company( of the Companions). He then narrated this tradition saying: When he(the Prophet) sat up after two rak’ahs, he sat on the sole of his left foot and raised his left foot. When he sat up after four rak’ahs, he placed his left hip on the ground and put out his both feet on one side. (Using translation from Abū Dāʾūd 965)   

البيهقي:٢٧٧٣أَخْبَرَنَا أَبُو زَكَرِيَّا بْنُ أَبِي إِسْحَاقَ الْمُزَكِّي وَأَبُو بَكْرٍ أَحْمَدُ بْنُ الْحَسَنِ الْقَاضِي قَالَا ثنا أَبُو الْعَبَّاسِ مُحَمَّدُ بْنُ يَعْقُوبَ ثنا بَحْرُ بْنُ نَصْرٍ قَالَ قُرِئَ عَلَى ابْنِ وَهْبٍ أَخْبَرَكَ ابْنُ لَهِيعَةَ عَنْ يَزِيدَ بْنِ أَبِي حَبِيبٍ وَعَبْدِ الْكَرِيمِ بْنِ الْحَارِثِ عَنْ مُحَمَّدِ بْنِ عَمْرِو بْنِ حَلْحَلَةَ الدِّيلِيِّ عَنْ مُحَمَّدِ بْنِ عَمْرِو بْنِ عَطَاءٍ عَنْ أَبِي حُمَيْدٍ السَّاعِدِيِّ قَالَ

رَأَيْتُ رَسُولَ اللهِ ﷺ إِذَا قَعَدَ فِي الرَّكْعَتَيْنِ قَعَدَ عَلَى بَطْنِ قَدَمِهِ الْيُسْرَى وَنَصَبَ الْيُمْنَى فَإِذَا كَانَتِ الرَّابِعَةُ أَفْضَى بِوَرِكِهِ الْيُسْرَى إِلَى الْأَرْضِ وَأَخْرَجَ قَدَمَيْهِ مِنْ نَاحِيَةٍ وَاحِدَةٍ