Sahih Muslim 1041

وَحَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، حَدَّثَنَا لَيْثٌ، ح قَالَ: وَحَدَّثَنَا ابْنُ رُمْحٍ، أَخْبَرَنَا اللَّيْثُ، عَنْ أَبِي الزُّبَيْرِ، عَنْ جَابِرٍ أَنَّهُ قَالَ: صَلَّى مُعَاذُ بْنُ جَبَلٍ الْأَنْصَارِيُّ لِأَصْحَابِهِ الْعِشَاءَ. فَطَوَّلَ عَلَيْهِمْ فَانْصَرَفَ رَجُلٌ مِنَّا. فَصَلَّى فَأُخْبِرَ مُعَاذٌ عَنْهُ فَقَالَ: إِنَّهُ مُنَافِقٌ فَلَمَّا بَلَغَ ذَلِكَ الرَّجُلَ دَخَلَ عَلَى رَسُولِ اللهِ صَلَّى اللهُ عَلَيْهِ وَسَلَّمَ فَأَخْبَرَهُ مَا قَالَ مُعَاذٌ فَقَالَ لَهُ النَّبِيُّ صَلَّى اللهُ عَلَيْهِ وَسَلَّمَ: «أَتُرِيدُ أَنْ تَكُونَ فَتَّانًا يَا مُعَاذُ؟ إِذَا أَمَمْتَ النَّاسَ فَاقْرَأْ بِالشَّمْسِ وَضُحَاهَا، وَسَبِّحِ اسْمَ رَبِّكَ الْأَعْلَى، وَاقْرَأْ بِاسْمِ رَبِّكَ، وَاللَّيْلِ إِذَا يَغْشَى»

Jabir reported: 'Mu'adh b. Jabal al-Ansari led his companions in the night prayer and prolonged it for them. A person amongst us said prayer (after having separated himself from the congregation). Mu'adh was informed of this, and he remarked that he was a hypocrite. When it (the remark) was conveyed to the man, he went to the Messenger of Allah ( ‌صلی ‌اللہ ‌علیہ ‌وسلم ‌ ) and informed him of what Mu'adh had said. Upon this the Messenger of Allah ( ‌صلی ‌اللہ ‌علیہ ‌وسلم ‌ ) said to him: Mu'adh, do you want to become a person putting (people) to trial? When you lead people in prayer, recite: By the Sun and its morning brightness (Surat ash-Shams), Glorify the name of thy most high Lord (Surat al-A`la) and Read in the name of Lord (Surat al-`Alaq), and By the night when it spreads (Surat al-Lail).