أَصَلَاتُكَ تَأْمُرُكَ أَنْ نَتْرُكَ مَا يَعْبُدُ آبَاؤُنَا
Does your prayer command you that we abandon what our fathers worshiped?
The people of Shuʿayb employ tahakkum, a mocking interrogation. Their point is not to discover whether ritual prayer literally speaks commands; they ridicule the prophetic call to abandon ancestral worship.
The expression uses “your prayer” as a sarcastic reference to what motivates the call. The speaker's hostile attitude and the communicative setting distinguish this from a neutral inquiry.