M4:306 — آفتابی نام تو مشهور و فاش / چه زیانست ار بکردم ابتلاش

This couplet is spoken by the 'lover' in a story where he has, in fact, been caught in a deceptive act of 'testing' his beloved. The beloved has seen through his initial excuses, and now the lover is trying a new tactic: flattery combined with a rhetorical question. He compares the beloved's fame and splendor to the 'Sun' (آفتاب), implying that her virtues are so clear and universally acknowledged that his 'test' (ابتلا) could not possibly diminish them. It's a manipulative argument, attempting to reframe his transgression as a mere formality or even a compliment, as if he were simply confirming what everyone already knows about her radiant perfection. Rumi uses this interaction to explore the subtleties of human deception, self-justification, and the beloved's penetrating insight.