Hadithcore
Mishkat al-Masabih, 803

Qabisa b. Hulb quoted his father as saying that God’s Messenger would lead them in prayer and hold his left hand in his right. Tirmidhi and Ibn Majah transmitted it.

وَعَنْ قَبِيصَةَ بْنِ هُلْبٍ عَنْ أَبِيهِ قَالَ: كَانَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَؤُمُّنَا فَيَأْخُذُ شِمَالَهُ بِيَمِينِهِ. رَوَاهُ التِّرْمِذِيُّ وَابْنُ مَاجَه

References1 variant
In-Book Reference
Book 4, Hadith 231