Is it permissible for the mosque mu'adhdhin in our neighborhood to delegate the adhan to someone else for a small fee from the stipend allocated to him?

Question : There is a man in our neighborhood who works as the mosque mu'adhdhin and receives a monthly stipend for this work. However, he does not call the adhan in the mosque except when he has an excuse due to being occupied with other tasks, and another person calls the adhan on his behalf, and he pays that person a small portion of the stipend. Is this permissible?

Answer : In the name of Allah, the Most Gracious, the Most Merciful. Whoever is entrusted with any of the religious duties, such as the adhan or leading the prayer, it is not permissible for him to appoint another person in his place and abandon the work. If he is occupied with other matters, he must inform the responsible authorities in the mosques that he is unable to perform the duty, and they will employ whoever they wish. As for holding the position without working in it, and appointing someone for half the salary, or less, or more, that is not permissible. And Shaykh al-Islam Ibn Taymiyyah (may Allah have mercy on him) said in his book al-Ikhtiyarat: "Among those who consume wealth unjustly are people who take on positions, then abandon them for a small amount, and take the rest."
It is obligatory for a person to fear his Lord Allah. If he is entrusted with leading the prayer or calling the adhan, let him perform it in the best manner, or let him abandon it. Yes.