ثُمَّ اغْسِلِيهِ بِالْمَاءِ
Then wash it with water.
An instruction to wash a bloodstained garment with water proves that washing with water is prescribed. It does not by itself establish that vinegar or every other liquid must fail to cleanse in every circumstance; such a conclusion needs further evidence.
Affirming one approved method is different from excluding every unmentioned method. Exclusion needs a valid indicator of exclusivity, not merely the presence of one example in the wording.
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Determining the Intended Meaning of Texts and Recognizing Weak Inferences
ثُمَّ اغْسِلِيهِ بِالْمَاءِ
Then wash it with water.
An instruction to wash a bloodstained garment with water proves that washing with water is prescribed. It does not by itself establish that vinegar or every other liquid must fail to cleanse in every circumstance; such a conclusion needs further evidence.
Affirming one approved method is different from excluding every unmentioned method. Exclusion needs a valid indicator of exclusivity, not merely the presence of one example in the wording.