Sahih Muslim , Book 15, Hadith 317 (In-Book) ⓘ
Shu'ba reported this hadith with the same chain of transmitters and said: He (the Holy Prophet) observed the two prayers (together) with one iqama.
وَحَدَّثَنِيهِ زُهَيْرُ بْنُ حَرْبٍ، حَدَّثَنَا وَكِيعٌ، حَدَّثَنَا شُعْبَةُ، بِهَذَا الإِسْنَادِ وَقَالَ صَلاَّهُمَا بِإِقَامَةٍ وَاحِدَةٍ .
also referenced under: Hadith 1288 (Reference) & Book 7, Hadith 2953 (USC-MSA)