Bulugh al-MaramChapter 2Hadith 609
Full Sharh — Bulugh al-Maram 609
وَفِي رِوَايَةٍ لَهُ: فَبَعَثَ مُنَادِيًا يُنَادِي: اَلصَّلَاةُ جَامِعَةٌ 1 .1 - مسلم برقم (901) (4).
English Translation
In another narration of Muslim:: "He (ﷺ) sent an announcer to announce: The prayer is (to be offered) in congregation".
Source
Bulugh al-Maram(بلوغ المرام)
The Book of Prayer
Hadith Number
609