كتاب الصلاة
2  
The Book of Prayer
Muslim has:
"While he (ﷺ) led the people in the prayer in the masjid..."
وَلِمُسْلِمٍ : { وَهُوَ يَؤُمُّ اَلنَّاسَ فِي اَلْمَسْجِدِ } .‏

Sunnah.com reference : Book 2, Hadith 92
English translation : Book 2, Hadith 0
Arabic reference : Book 2, Hadith 226