Is the first adhan for the Friday prayer obligatory such that the prayer is invalidated if it is left?

Question:
May Allah reward you, Your Eminence, father. The questioner asks: Is the first adhan for the Friday prayer obligatory, such that if the mu'adhdhin does not give the first adhan, the prayer is invalidated?

Answer:
The prayer is not invalidated, and even if the second adhan is left, the prayer is not invalidated. Leaving the adhan does not invalidate it, and leaving the iqamah does not invalidate the prayer. The prayer is valid, but both are obligatory. Leaving an obligatory act is a sin, but it does not invalidate the prayer.