છોકરા હોય તો વહુ આવે, ને રૂપીયા હોય તો વ્યાજ આવે.

chōkarā hōya tō vahu āvē, nē rūpīyā hōya tō vyāja āvē.

Literally: If there are sons, daughters-in-law will come; and if there is money, interest will come.
What it means: One must possess the core asset or foundation before expecting to reap the natural benefits or additions that come with it.

Also said as

ગુજરાતી કહેવતસંગ્રહ (Gujarati Kahevat Sangrah) (1923) · 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.