Deuteronomy 22:15

22:15 Then the father and mother of the young woman must produce the evidence of virginity ¹  for the elders of the city at the gate.

Deuteronomy 22:17

22:17 Moreover, he has raised accusations of impropriety by saying, ‘I discovered your daughter was not a virgin,’ but this is the evidence of my daughter’s virginity!” The cloth must then be spread out ²  before the city’s elders.

[22:15]  ¹ sn In light of v. 17 this would evidently be blood-stained sheets indicative of the first instance of intercourse. See E. H. Merrill, Deuteronomy (NAC), 302-3.

[22:17]  ² tn Heb “they will spread the garment.”