Hadith 31-140

وَبِهذَا الإِسنادِ عَنْ عَلِىِّ بْنِ أَبِي طالِبٍ‏ عَلَيْهِ السَّلامُ قالَ: سَمِعْتُ رَسُولَ اللَّهِ‏ صَلَّى اللهُ عَلَيْهِ وَآلِهِ يَقُولُ: إِنّي أَخافُ عَلَيْكُمُ استِخفافاً بِالدِّينِ وَبَيعَ الحُكمِ، وَقَطِيعَةَ الرَّحِمِ وَأَن تَتَّخِذُوا الْقُرْآنَ مَزامِيرَ وَتَقَدِّمونَ أَحَدَكُم وَلَيْسَ بِأَفضَلِكُمْ فِي الدِّين.

According to the same documentation, Ali ibn Abi Talib (a.s.) said, “I heard God’s Prophet (S) say: I am afraid that you will underestimate the religion, accept bribery when you are about to judge on a case, cut off ties with relatives, take the Qur’an as a musical instrument, and establish people as your prayer leaders who are not nobler than you in religion.”