Under the Hanafi position, dog hide becomes pure through tanning. Al-Shafi‘i does not regard dog hide as purified by tanning. The disagreement concerns whether the general tanning rule includes dog hide or whether its impurity removes it from that general principle.
The Hanafi reading appeals to the general clause وَكُلُّ إِهَابٍ دُبِغَ فَقَدْ طَهُرَ
Translation: Every tanned hide becomes pure.
The expressly stated exceptions that follow refer to pig and human skin, not dog hide.
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Tanning, Purity of Hides and Parts of Carrion
Under the Hanafi position, dog hide becomes pure through tanning. Al-Shafi‘i does not regard dog hide as purified by tanning. The disagreement concerns whether the general tanning rule includes dog hide or whether its impurity removes it from that general principle.
The Hanafi reading appeals to the general clause وَكُلُّ إِهَابٍ دُبِغَ فَقَدْ طَهُرَ
Translation: Every tanned hide becomes pure.
The expressly stated exceptions that follow refer to pig and human skin, not dog hide.