He did the marriage contract with a girl but did not tell his parents, and he wants to do the marriage contract again in their presence

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Check below answers in case you are looking for other related questions:
Marrying without officially registering the marriage
Followers of misguided sects should not marry Ahl al-Sunnah (Sunnis)

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Marrying without officially registering the marriage
Followers of misguided sects should not marry Ahl al-Sunnah (Sunnis)

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