Fifteen years ago, I was on a business trip to a foreign country. I arrived on Thursday and spent that night in a hotel with no clean facilities; almost devoid of bathrooms. And if there were any, one could not have bathed in them anyway.
I woke up that day to find that I had a wet dream, but could not perform Ghusl. So, I left the hotel and met my relatives who had asked me to go with them for Friday prayer. I was embarrassed to tell them that I had had a wet dream and so, I went with them to the Masjid, performed ablution, listened to the sermon, and prayed with them. What should I do about this situation?

All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad, sallallaahu ‘alayhi wa sallam, is His Slave and Messenger.

You have committed a grave sin, and your bashfulness and shyness were inappropriate and drove you to commit what is forbidden. There was nothing wrong or shameful in telling your relatives or others that you had a wet dream and that you were Junub. On the contrary, it was your responsibility to tell them so as to provide you with the needed water to perform due Ghusl and pray; for prayers are invalid without purity. However, in light of what happened in the past, you should make up for it and pray a Thuhr prayer and repent from your sin and seek the Forgiveness of Allaah The Exalted. Moreover, if you had performed any other prayers that day before performing Ghusl, then you should make up for them as well.

Allaah Knows best.