It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "The imam is a guarantor and the muezzin is entrusted; 'Allahumma arshid al-a'immah waghfir lil-mu'adhdhinin' (O Allah, guide the imams and forgive the muezzins)." In the narration of Abu Hamzah there is that a man said: "O Messenger of Allah, you have left us competing with one another over the adhan after you for a long time." He (peace and blessings be upon him) said: "After you there will come a time when the lowliest of them will be their muezzins."
Al-A'mash did not hear this hadith from Abu Salih with certainty; rather, he heard it from a man who narrated it from Abu Salih.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 2022