લોભી ગુરૂ ને ચેલા લાલચુ, દોનું ખેલે દાવ.

lōbhī gurū nē cēlā lālacu, dōnuṁ khēlē dāva.

Literally: A greedy guru and a greedy disciple, both play the game.
What it means: When both the leader and the follower are corrupt, they will inevitably collude in their schemes.

Also said as

ગુજરાતી કહેવતસંગ્રહ (Gujarati Kahevat Sangrah) (1923) ગુજરાતી કહેવતસંગ્રહ (Gujarati Kahevat Sangrah) (1921) · read from the scan by machine — the Gujarati itself is unchecked · English is machine-made and nobody has checked it yet

Heard it differently, or know we've got the sense wrong? Tell us — that is exactly the kind of correction this needs.