Say I wanted to apply for a Russian visa in Cambodia while traveling there, then I found that beyond the other documents required I also need to prove legality of my stay in Cambodia:

Non-Cambodian citizens should also provide proof of legality of their stay in Cambodia when applying for a visa.

How do I prove this?

Assume my nationality is EU (but ideally this should work for any /most nationalities) and I am on a regular tourist visa in Cambodia.

Say I wanted to apply for a Russian visa in Cambodia while traveling there, then I found that beyond the other documents required I also need to prove legality of my stay in Cambodia:

Non-Cambodian citizens should also provide proof of legality of their stay in Cambodia when applying for a visa.

How do I prove this?

Assume my nationality is EU (but ideally this should work for any /most nationalities) and I am on a regular tourist visa in Cambodia.

Say I wanted to apply for a Russian visa in Cambodia while traveling there, then I found that beyond the other documents required I also need to proof legality of my stay in Cambodia:

Non-Cambodian citizens should also provide proof of legality of their stay in Cambodia when applying for a visa.

How do I proof this?

Assume my nationality is EU (but ideally this should work for any /most nationalities) and I am on a regular tourist visa in Cambodia.

Say I wanted to apply for a Russian visa in Cambodia while traveling there, then I found that beyond the other documents required I also need to prove legality of my stay in Cambodia:

Non-Cambodian citizens should also provide proof of legality of their stay in Cambodia when applying for a visa.

How do I prove this?

Assume my nationality is EU (but ideally this should work for any /most nationalities) and I am on a regular tourist visa in Cambodia.