What is the ruling on an 'urfi marriage if its legal pillars are met – the guardian, two witnesses, and the dowry – but without public announcement and declaration among people?

An 'urfi marriage is valid if it fulfills the pillars of marriage, which are: a guardian (wali), two just witnesses, and a dowry (mahr), even if it is not announced. This is because the announcement of the marriage is not a condition for its validity; rather, it is considered commendable by the majority of scholars.