«رَبَّكْ وِصَاحْبَكْ لَا تِكْدِبْ عَلِيهْ»

The saying singles out two relationships that must stay free of deception: the one with God, who already knows everything and cannot be fooled, and the one with a genuine friend or close companion who has placed trust in you. Naming these two does not excuse dishonesty in other dealings.

A friendship stands on openness, so lying to a friend quietly undoes the very bond one claims to have. Deceiving a companion contradicts the loyalty and sincerity that friendship is supposed to mean, turning closeness into pretense.

Fits moments when someone is tempted to mislead a close friend, or as a reminder that candor is owed above all where trust runs deepest. It can also gently rebuke a person caught shading the truth with an intimate companion.