Reference for Menachot 81:20

תניא נמי הכי טלית שנקרעה חוץ לשלש יתפור תוך שלש רבי מאיר אומר לא יתפור וחכ"א יתפור

[For it was taught]: The pious men of old used to insert the fringes as soon as three fingerbreadths of the garment had been woven?<span class="x" onmousemove="('comment',' Clearly because the obligation rests upon the garment as soon as it is made, for if it were a personal obligation the duty to insert fringes would arise only when the garment was about to be worn.');">¹²</span>

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