Reference for Genesis 38:30

וְאַחַר֙ יָצָ֣א אָחִ֔יו אֲשֶׁ֥ר עַל־יָד֖וֹ הַשָּׁנִ֑י וַיִּקְרָ֥א שְׁמ֖וֹ זָֽרַח׃ (ס)

And afterward came out his brother, that had the scarlet thread upon his hand; and his name was called Zerah.