No, as the interest money must be given to a Muslim charity in order to cleanse one’s wealth.

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It is not mandatory and your Tawaf is valid even if you didn’t do that. If there is no crowed, it is sunnah to kiss it. If you are not able, simply point at it.

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They are sinful for this and the income depends on their performance and compliance to the job description. A portion of their income is haram for such a lie.

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