Is it permissible to allow some of his children to build on the land to the exclusion of others?

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Check below answers in case you are looking for other related questions:
Ruling on differentiating between children in gift-giving
If you were given a loan or a gift with certain conditions, you should not spend it on anything else

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Ruling on differentiating between children in gift-giving
If you were given a loan or a gift with certain conditions, you should not spend it on anything else

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