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.
tirmidhi:252Qutaybah > Abū al-Aḥwaṣ > Simāk b. Ḥarb > Qabīṣah b. Hulb from his father

his father who said: "Messenger of Allah lead us in prayer and hold his left hand with his right."  

الترمذي:٢٥٢حَدَّثَنَا قُتَيْبَةُ حَدَّثَنَا أَبُو الأَحْوَصِ عَنْ سِمَاكِ بْنِ حَرْبٍ عَنْ قَبِيصَةَ بْنِ هُلْبٍ عَنْ أَبِيهِ قَالَ

كَانَ رَسُولُ اللَّهِ ﷺ يَؤُمُّنَا فَيَأْخُذُ شِمَالَهُ بِيَمِينِهِ قَالَ وَفِي الْبَابِ عَنْ وَائِلِ بْنِ حُجْرٍ وَغُطَيْفِ بْنِ الْحَارِثِ وَابْنِ عَبَّاسٍ وَابْنِ مَسْعُودٍ وَسَهْلِ بْنِ سَعْدٍ  

قَالَ أَبُو عِيسَى حَدِيثُ هُلْبٍ حَدِيثٌ حَسَنٌ وَالْعَمَلُ عَلَى هَذَا عِنْدَ أَهْلِ الْعِلْمِ مِنْ أَصْحَابِ النَّبِيِّ ﷺ وَالتَّابِعِينَ وَمَنْ بَعْدَهُمْ يَرَوْنَ أَنْ يَضَعَ الرَّجُلُ يَمِينَهُ عَلَى شِمَالِهِ فِي الصَّلاَةِ وَرَأَى بَعْضُهُمْ أَنْ يَضَعَهُمَا فَوْقَ السُّرَّةِ وَرَأَى بَعْضُهُمْ أَنْ يَضَعَهُمَا تَحْتَ السُّرَّةِ وَكُلُّ ذَلِكَ وَاسِعٌ عِنْدَهُمْ وَاسْمُ هُلْبٍ يَزِيدُ بْنُ قُنَافَةَ الطَّائِيُّ