આટામાં લુણ સમાય, લુણમાં આટા સમાય નહીં.

āṭāmāṁ luṇa samāya, luṇamāṁ āṭā samāya nahīṁ.

Literally: Salt can fit in flour, but flour cannot fit in salt.
What it means: Small expenses or minor flaws can be absorbed in a large enterprise, but not vice versa.

Also said as

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.