Mishkat al-Masabih
Mishkat al-Masabih 1150
One who prays a prayer twice - Section 1
Arabic hadith text
عَنْ جَابِرٍ قَالَ: كَانَ مُعَاذُ بْنُ جَبَلٍ يُصَلِّي مَعَ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ ثُمَّ يَأْتِي قومه فَيصَلي بهم
Translation
Jabir said that Muadh b. Jabal would pray along with the Prophet, then go to his people and lead them in prayer. (Bukhari and Muslim.)