What is the ruling on the obligatory prayer without an adhan due to tight time or for any other reason?

Question:
May Allah reward you with good. What is the ruling on the obligatory prayer without an adhan due to tight time or for any other reason?

Answer:
The adhan is prescribed, and it is recommended for the worshippers. However, it must be performed by someone sufficient to do so, because it is a collective obligation. If the adhan is called in some of the mosques in a town, then the adhan in the remaining mosques becomes recommended. But if the people of all the mosques leave it off, then they are leaving off an obligatory duty. Likewise, regarding the one who prays alone, or for travelers, the adhan and iqamah are prescribed for them. Some scholars hold that it is obligatory, based on the saying of the Messenger (peace and blessings be upon him) and the command indicates obligation. In any case, the adhan is prescribed for individuals and for the congregation, in residence and in travel. Sometimes it is a collective obligation, and sometimes it is recommended. But if one prays without an adhan and without an iqamah, the prayer is valid if its conditions, pillars, and obligatory acts are present, because the adhan is not among the conditions of the prayer, as it is a notification of the entry of the time.
And the iqamah is a notification of standing for the prayer, so neither is among its conditions; rather, they are two independent prescriptions. Yes.