Buying a Boy/Slave
Interpreters stated that seeing oneself buying a boy (ghulam) in a dream may indicate sorrow and worry befalling the dreamer. Whereas seeing oneself buying a young woman (jariya) may signify the dreamer obtaining goodness.
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.