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.
nasai-kubra:963Sūwayd b. Naṣr al-Marwazī > ʿAbdullāh b. al-Mubārak > Mūsá b. ʿUmayr al-ʿAnbarī And Qays > ʿAlqamah b. Wāʾil from his father

"Alqamah bin Wa'il told us that his father said: "I saw the Messenger of Allah ﷺ, when he was standing in prayer, holding his left hand with his right.'" (Using translation from Nasāʾī 887)  

الكبرى للنسائي:٩٦٣أَخْبَرَنَا سُوَيْدُ بْنُ نَصْرٍ الْمَرْوَزِيِّ قَالَ أَخْبَرَنَا عَبْدُ اللهِ بْنُ الْمُبَارَكِ عَنْ مُوسَى بْنِ عُمَيْرٍ الْعَنْبَرِيِّ وَقَيْسٍ قَالَا حَدَّثَنَا عَلْقَمَةُ بْنُ وَائِلٍ عَنْ أَبِيهِ قَالَ

«رَأَيْتُ رَسُولَ اللهِ ﷺ إِذَا كَانَ قَائِمًا فِي الصَّلَاةِ قَبَضَ بِيَمِينِهِ عَلَى شِمَالِهِ»  


See similar narrations below:

Collected by Nasāʾī
nasai:887Sūwayd b. Naṣr > ʿAbdullāh > Mūsá b. ʿUmayr al-ʿAnbarī And Qays b. Sulaym al-ʿAnbarī > ʿAlqamah b. Wāʾil from his father

"Alqamah bin Wa'il told us that his father said: "I saw the Messenger of Allah ﷺ, when he was standing in prayer, holding his left hand with his right.'"  

النسائي:٨٨٧أَخْبَرَنَا سُوَيْدُ بْنُ نَصْرٍ قَالَ أَنْبَأَنَا عَبْدُ اللَّهِ عَنْ مُوسَى بْنِ عُمَيْرٍ الْعَنْبَرِيِّ وَقَيْسِ بْنِ سُلَيْمٍ الْعَنْبَرِيِّ قَالاَ حَدَّثَنَا عَلْقَمَةُ بْنُ وَائِلٍ عَنْ أَبِيهِ قَالَ

رَأَيْتُ رَسُولَ اللَّهِ ﷺ إِذَا كَانَ قَائِمًا فِي الصَّلاَةِ قَبَضَ بِيَمِينِهِ عَلَى شِمَالِهِ