Source: The Great Interpretation of Dreams (Ibn Sirin)
Unlocking a yoke in a dream indicates repentance from disbelief or salvation from worry.
Source: Perfuming Humanity in the Expression of Dreams (Al-Nabulsi)
Unlocking a yoke indicates relief from hardship or separation from a bad wife.
Source: Signs in the Science of Expressions (Ibn Shaheen)
Unlocking a yoke is interpreted as the end of worry.