Sahih Muslim , Book 4, Hadith 1176 (USC-MSA) ⓘ
Alqama reported: He (the Holy Prophet) had led them five rak'ahs in prayer.
وَحَدَّثَنَا ابْنُ نُمَيْرٍ، حَدَّثَنَا ابْنُ إِدْرِيسَ، عَنِ الْحَسَنِ بْنِ عُبَيْدِ اللَّهِ، عَنْ إِبْرَاهِيمَ، عَنْ عَلْقَمَةَ، أَنَّهُ صَلَّى بِهِمْ خَمْسًا .
also referenced under: Book 5, Hadith 120 (In-Book) & Hadith 572 (Reference)