Begging is not permissible and collecting funds this way to benefit her is not appropriate.

Kindly refer to the following link(s):

https://islamqa.info/en/42384

https://www.youtube.com/watch?v=u4hqOK7-cO8 – Best thing to do for a
deceased

Is it permissible to raise money from the community to fund sadaqah jaariyah for a deceased person? My grandmother had passed away, some relatives are raising money from the community in order to build an Islamic centre. Is this permissible? Or should the money only come from the children of the deceased?

Funerals | July 3, 2017 7:43 pm
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Dear Shaikh, I would like to know the do’s and don’t on visiting ones grave. Also is it permissible to put Rose Water and plant a small tree on the grave & read Surah Yaseen.
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Ya Sheikh.. My mum died some days back. Some scholars said I shall be reciting suratul Ikhlas and Suratul Mulk to her, so, is it authentic from Quran and Sunnah?, if NO which Dua will I be doing for her to en light her grave and forgiveness from Allah?