Genesis 42:34

And bring your youngest brother unto me: then shall I know that ye are no spies, but that ye are true men: so will I deliver you your brother, and ye shall traffick in the land.

Cross-reference

Genesis 42:11 shows brothers claiming honesty — Joseph's demand in v34 directly tests that claim.

Genesis 42:15 first states the test of bringing Benjamin — v34 reiterates the same condition.

Genesis 42:20 is Joseph's original command to bring Benjamin — v34 quotes this command in the brothers' report.

Genesis 43:3 records Judah recalling Joseph's warning — directly referencing the condition from v34.