Answer
(Fatwa: 2118/1948=B/1429)
There is no such thing proved from the Quran and Hadith, what they say is wrong, it is not right as per the Shariah. Even Hadith prohibits these things. Mourning, beating chest and raising tazia is innovation in religion and unlawful:
وإیاہ ثم إیاہ أن تشتغل ببدع الرفضۃ ونحوھم من الندب والنیاحۃ والحزن إذ لیس ذلک من أخلاق المؤمنین وإلا لکان یوم وفاتہ أولی بذلک (صواعق محرقہ 112)
According to Hadith, we have been prohibited to mourn for more than three days. (Mishkat 289)
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband