حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا سَعِيدُ بْنُ سُلَيْمَانَ، حَدَّثَنَا عَبْدُ الْحَمِيدِ بْنُ سُلَيْمَانَ، أَخُو فُلَيْحٍ حَدَّثَنَا أَبُو حَازِمٍ، قَالَ كَانَ سَهْلُ بْنُ سَعْدٍ السَّاعِدِيُّ يُقَدِّمُ فِتْيَانَ قَوْمِهِ يُصَلُّونَ بِهِمْ فَقِيلَ لَهُ تَفْعَلُ وَلَكَ مِنَ الْقِدَمِ مَا لَكَ قَالَ إِنِّي سَمِعْتُ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ يَقُولُ ‏"‏ الإِمَامُ ضَامِنٌ فَإِنْ أَحْسَنَ فَلَهُ وَلَهُمْ وَإِنْ أَسَاءَ - يَعْنِي - فَعَلَيْهِ وَلاَ عَلَيْهِمْ ‏"‏ ‏.‏

Abu Hazimsaid: “Sahl bin Sa’d As-Sa’idi used to give preference totheyoung to lead his people in prayer. It was said to him: “Do you dothat, when you have such seniority (in Islam)?” He said: “I heardtheMessenger of Allah (PBUH) say: ‘The Imam is responsible. If hedoeswell, then he will have the reward and so will they, but if hedoesbadly, then that will be counted against him but not againstthem.’” Translation Not Available

Book Ref: Sunan Ibn Majah Book 5 Hadith 981
Web Ref:  Sunan Ibn Majah Vol 1 Book 5 Hadith 981