Is it permissible to listen to the adhaan at times other than the times of prayer?

Question

Praise be to Allah.

There does not seem to be anything wrong with listening to
the adhaan at any time, other than the times of prayer. In the adhaan
there is remembrance of Allah, glorification of Him and other noble
meanings.

Al-Haafiz Ibn Hajar (may Allah have mercy on him) said:

Al-Qurtubi and others said: The adhaan, although its phrases
are few, includes issues of ‘aqeedah (belief), because it starts with
takbeer (“Allahu akbar”), which speaks of the existence and perfection of
Allah; then it praises Him and proclaims His Oneness (Tawheed) and denies
that He has any partner; then it affirms the Messengership of Muhammad
(blessings and peace of Allah be upon him); then it calls to obedience
following the testimony that Muhammad (blessings and peace of Allah be upon
him) is the Messenger of Allah, because how He is to be obeyed can only be
known through the Messenger; then it calls to success, which is eternal
life, which is a reference to the resurrection; then it repeats phrases by
way of affirmation.

Fath al-Baari, 2/77.

Based on that, there is nothing wrong with listening to the
adhaan in programs or mobile phones or recorded tapes and so on, whilst
pondering noble meanings that this call contains.

But we should point out that when listening to the adhaan in
these ways, it is not prescribed to repeat its phrases.

Shaykh Muhammad ibn Saalih al-‘Uthaymeen (may Allah have
mercy on him) said: If the adhaan is recorded and is not being given at the
time of prayer, then its phrases do not have to be repeated, because this is
not a real call to prayer, i.e., it is not being given when it is enjoined
to give it; rather it is a recording of a previous call to prayer.

Majmoo‘ Fataawa al-Shaykh al-‘Uthaymeen,
12/196

And Allah knows best.