صحيح البخاري
Sahih Bukhari
كتاب الأذان
The Book of Adhan
بَابُ إِذَا طَوَّلَ الإِمَامُ وَكَانَ لِلرَّجُلِ حَاجَةٌ فَخَرَجَ فَصَلَّى:
(60) Chapter. If the Imam prolongs the Salat (prayer) and somebody has an urgent work or need and so he leaves the congregation and offers Salat alone.
2 hadith
Hadith 700
Narrated Mu`adh bin Jabal: I used to pray the `Isha prayer with the Prophet and then go to lead my people in the prayer.
Hadith 701
حَدَّثَنِي
مُحَمَّدُ بْنُ بَشَّارٍ ، قَالَ : حَدَّثَنَا
غُنْدَرٌ ، قَالَ : حَدَّثَنَا
شُعْبَةُ ، عَنْ
عَمْرٍو ، قَالَ : سَمِعْتُ
جَابِرَ بْنَ عَبْدِ اللَّهِ ، قَالَ : " كَانَ مُعَاذُ بْنُ جَبَلٍ يُصَلِّي مَعَ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ ، ثُمَّ يَرْجِعُ فَيَؤُمُّ قَوْمَهُ ، فَصَلَّى الْعِشَاءَ فَقَرَأَ بِالْبَقَرَةِ فَانْصَرَفَ الرَّجُلُ ، فَكَأَنَّ مُعَاذًا تَنَاوَلَ مِنْهُ فَبَلَغَ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ ، فَقَالَ : فَتَّانٌ ، فَتَّانٌ ، فَتَّانٌ ، ثَلَاثَ مِرَارٍ ، أَوْ قَالَ : فَاتِنًا ، فَاتِنًا ، فَاتِنًا ، وَأَمَرَهُ بِسُورَتَيْنِ مِنْ أَوْسَطِ الْمُفَصَّلِ " ، قَالَ عَمْرٌو : لَا أَحْفَظُهُمَا .
Narrated `Amr: Jabir bin `Abdullah said, "Mu`adh bin Jabal used to pray with the Prophet and then go to lead his people in prayer Once he led the `Isha' prayer and recited Surat "Al-Baqara." Somebody left the prayer and Mu`adh criticized him. The news reached the Prophet and he said to Mu`adh, 'You are putting the people to trial,' and repeated it thrice (or said something similar) and ordered him to recite two medium Suras of Mufassal." (`Amr said that he had forgotten the names of those Suras).