If I am reading Quran or if I am listening audio Quran while I am traveling

What would be my responsibility in both situations if Ayat e Sajjada recites

Because I cannot perform sajjada in traveling

you have to put your forehead on the paak place.

it means sajda is wajib in all condition

If I am reading Quran or if I am listening audio Quran while I am traveling

What would be my responsibility in both situations if Ayat e Sajjada recites

Because I cannot perform sajjada in traveling

You should do the sajda as soon as you are able.