The Urine
Scholars have said that seeing people anointing themselves with the dreamer's urine indicates the birth of a male child. This dream is interpreted to mean that this child will have a significant status, causing people to follow him.
Per Ibn Sirin's Muntakhab al-Kalam fi Tafsir al-Ahlam
Note: These are traditional scholarly interpretations (ijtihad) drawn from a specific classical source — not a binding religious ruling, fortune-telling, or a prediction of the future.