ومن باع قطيع غنم كل شاة بدرهم فالبيع فاسد في جميعها
Translation: Whoever sells a flock of sheep at one dirham per animal: the sale is defective in respect of the whole flock.
Qati' ghanam is a flock; kullu shatin bi-dirham sets one dirham as the price of each animal.
Sheep are not homogeneous units of grain. Their age, condition and value differ, so the absence of a count and identification can leave a dispute over which animals are included.
Quduri states this sale is fasid in its entirety.