וַיְהִ֥י בְלִדְתָּ֖הּ וַיִּתֶּן־יָ֑ד וַתִּקַּ֣ח הַמְיַלֶּ֗דֶת וַתִּקְשֹׁ֨ר עַל־יָד֤וֹ שָׁנִי֙ לֵאמֹ֔ר זֶ֖ה יָצָ֥א רִאשֹׁנָֽה׃
And it came to pass, when she travailed, that one put out a hand; and the midwife took and bound upon his hand a scarlet thread, saying: ‘This came out first.’
Targum Jonathan on Genesis
And it was in being born that the child stretched forth his hand; and the midwife took it, and bound it with a scarlet thread, saying, This came the first.