"O Allah, there is no good except Your good, no bird [omen] except that which You send, and no god but You."

Al-Khattabi explained that "there is no bird except that which You send" means no omen — good or bad — occurs except by Allah's will.

[Ahmad 2/220; Ibn as-Sunni 292; Sahih al-Jami‘ as-saghir 3955]