BAYHAQI 2585:
from Abū Bakr b. ʿAbd al-Raḥman b. al-Ḥārith b. Hishām —
[Machine] Abu Bakr al-Siddiq and Zaid bin Thabit entered the mosque, and the imam was in the state of bowing. They joined him in the bowing position, then made a third bow while still in the bowing position until they caught up with the row.
البيهقي ٢٥٨٥:
عن ابو بكر بن عبد الرحمن بن الحارث بن هشام —
أَنَّ أَبَا بَكْرٍ الصِّدِّيقَ وَزَيْدَ بْنَ ثَابِتٍ دَخَلَا الْمَسْجِدَ وَالْإِمَامُ رَاكِعٌ فَرَكَعَا ثُمَّ دَبَّا وَهُمَا رَاكِعَانِ حَتَّى لَحِقَا بِالصَّفِّ
hadithunlocked.com