Assalamualaikum Warahmatullahi Wabarakatuh
Sister, What I'd like to point out apart from the fact that it's impermissible to make dua in the mothers name as you can see with the proof provided above by MuslimGuy (JazakAllahu Khairan), is the intention of this "dua" and the authenticity of it! To the best of my knowledge, this dua doesn't have any basis in the Sunnah of the prophet Muhammad Sallallahu Alaihi Wasallam. Allah t'ala knows best.
From my limited knowledge, I can tell you that what happens in these cases is that, usually someone goes to a person who they think is knowledgable, and that person usually tells the person to recite a certain thing "so and so many times" and at "so and so time" for "such and such" to happen..
Stuff like this is used by South Asians (mostly) and they call it a "wadhifa" or "wazifa" .. But the term 'wadhifa' nowadays has been invented as implying self-invented recitations, and the times of these recitations, or the self-proclaimed rewards or merits one may get if they follow the self-invented and stated procedures, etc….when Allah and His Messenger (saws) have never endorsed such rites….then without an iota of a doubt, all such self-invented ‘wadhifas’ would constitute manifest and clear ‘bid’ah or innovations!
Every single innovation in the pure and perfect deen of Islam is an error and a sin in the Sight of Allah t'ala; and the believers who sincerely fear Allah and the Last Day must strive to abstain from following any innovation in the pure and perfect deen of Islam.
Aisha narrated that the Messenger of Allah (saws) said: ‘If somebody innovates something which is not present in our religion, then that thing will be rejected.’
Related by Bukhari.
Sunan of Abu-Dawood Hadith 4515 - Narrated by Ali ibn AbuTalib that the Prophet of Allah (saws) said: “If anyone introduces an innovation (in religion), he will be responsible for it. If anyone introduces an innovation or gives shelter to a man who introduces an innovation (in religion), he is cursed by Allah, by His Angels, and by all the people.”
Sahih Muslim Hadith 1885 - Narrated by Jabir ibn Abdullah that the Prophet of Allah (saws) said in a sermon: “The best speech is that which is embodied in the Book of Allah, the Al Quran; and the best guidance is the guidance given by me, Mohamed (saws). The most evil affairs are the innovations, and every innovation is an error.”
If one trusts, obeys, and follows the guidance and commands of Allah and His Messenger, Muhammad Sallallahu Alaihi Wasallam, one can be assured of never ever being misled; but if one believes, obeys and follows any other guidance, other than that of Allah and His Messenger, one can be assured of being led astray.
Pls check this link out on the etiquettes of how to make dua:
Pls remember, a dua is not a spell you put on someone!! And be sure that if Allah t'ala has withheld something from you, it is best for you.
... And it may be that you dislike a thing which is good for you and that you like a thing which is bad for you. Allâh knows but you do not know.
- Quran 2:216
I hope I have helped somewhat. May Allah t'ala ease your difficulty and if It is not willed by Allah, then may He give you the strength to deal with it. Allahumma Ameen
Your sister in Islam,