26:213
فَلَا تَدْعُ مَعَ ٱللَّهِ إِلَـٰهًا ءَاخَرَ فَتَكُونَ مِنَ ٱلْمُعَذَّبِينَ ٢١٣
Saheeh International
So do not invoke with Allah another deity and [thus] be among the punished.
Tafsir of "Ibn Kathir" (English)
The Command to warn His Tribe of near Kindred Allah said:فَلَ تَدْعُ مَعَ اللَّهِ إِلَهًا اخَرَ فَتَكُونَ مِنَ الْمُعَذَّبِينَوَأَنذِرْ عَشِيرَتَكَ الاْأَقْرَبِينَ