Dalil

Quran Yusuf 12:39

يَٰصَٰحِبَيِ ٱلسِّجۡنِ ءَأَرۡبَابٞ مُّتَفَرِّقُونَ خَيۡرٌ أَمِ ٱللَّهُ ٱلۡوَٰحِدُ ٱلۡقَهَّارُ

Translation

O [my] two companions of prison, are separate lords better or Allāh, the One, the Prevailing?