Is the adhan of the radio or television sufficient for knowing the entry of the time, or is it necessary to hear the adhan of the mosque?

The questioner : What is the ruling on congregational prayer when the adhan of the mu'adhdhin is not heard, but one knows through the television, for example, we are present in this gathering and know through the radio or television that the adhan has been called, but we do not hear the adhan of the nearby mosque?

The Shaykh : The important thing is that the Muslim is aware of the arrival of the prayer time in the mosque, and without a doubt, there are two matters here:
The first matter is that it is not necessary to know this through the method of the adhan; if he did not hear the adhan and his family told him: the adhan has been called for prayer; then that has occurred.
The second matter is that knowledge is not sufficient, even if it is through the Sharia method of listening to the adhan oneself, that he must attend the mosque; because attending the mosque is not obligatory for every person of legal age. First of all, the mosque must be close, such that its adhan is heard in a normal, natural way, not through these modern means. If the mosque is far, its location is far from hearing its adhan by natural hearing, this is not obligatory for him to attend, even if he heard it through a loudspeaker. But without a doubt, it is better for him to attend. However, we say that attending, attending the five prayers in the mosques, the original ruling is obligation, meaning: that congregational prayer is obligatory like the prayer itself, so it is not permissible for the Muslim to pray the obligatory prayer in his house without a Sharia excuse. If the mosque is close to the person of legal age, he must attend. But there are known excuses that do not make it obligatory for you, such as one who is, for example, a traveler, or is sick. It is not obligatory for this one or that one to pray in the mosque, but it is recommended at the same time to pray in the mosque even if it is not obligatory for him, as came in the hadith of Muslim from Abdullah ibn Mas'ud: "That they would carry one of them, supporting him between two men due to the severity of his illness, and take him to the mosque."
This is in explaining the concern of the Salaf in performing the prayer in the mosque, but in this case, the prayer is not obligatory for him in the mosque.
Yes.