Guidelines Concerning Names Which May Correctly Be Attributed To Allaah,...

Praise be to Allaah, and blessings and peace be upon
the Messenger of Allaah and his family and
companions.
All the names of Allaah are tawqeefi, i.e., we
should accept what is narrated in the Qur’aan and
Sunnah and not add or subtract anything. Based on
this, it is not correct to call Allaah by any name
other than those by which He has called Himself
in His Book or those that His Messenger (peace
and blessings of Allaah be upon him) called Him by
in the saheeh ahaadeeth, because the human
mind cannot work out the names that Allaah
deserves, so we must stop at what is mentioned
in the texts, because Allaah says (interpretation
of the meaning):
“And follow not (O man, i.e., say not, or do not, or
witness not) that of which you have no knowledge.
Verily, the hearing, and the sight, and the heart of
each of those ones will be questioned (by Allaah)”
[al-Isra’ 17:36]
Calling Allaah by a name that He has not called
Himself, or denying a name by which he has called
Himself is a transgression against the rights of Allaah.
So we should observe the proper etiquette and
adhere to that which is narrated in the texts.
With regard to words which are mentioned in the
Qur’aan and Sunnah only by way of description or
information, and it is not narrated that Allaah is called
by these names, it is not correct to call Him by them,
because some of the attributes of Allaah have to do
with His actions, and the actions of Allaah have no
end, just as His words have no end.
For example, some of the attributes of Allaah that
refer to His actions describe Him as coming, bringing,
taking, withholding and seizing etc., as Allaah says
(interpretation of the meaning):
“And your Lord comes with the angels in rows”
[al-Fajr 89:22]
“He withholds the heaven from falling on the earth
except by His Leave”
[al-Hajj 22:65]
“Verily, (O Muhammad) the Seizure (punishment) of
your Lord is severe and painful”
[al-Burooj 85:12]
So we attribute these characteristics to Allaah as they
are mentioned, but we do not call Him by them (i.e.,
we do not make names out of them), so we do not
say that among His names are al-Jaa’i (the Comer),
al-Aati (the Comer), al-Mumsik (the Withholder) or al-
Baatish (the Seizer), etc. Rather we say that this is
what He does and attribute those actions to Him.
And Allaah knows best.
See al-Qawaa’id al-Mathla fi Sifaat-Illaahi wa
Asmaa’ihi al-Husna, 13, 21, by Shaykh Ibn ‘Uthaymeen
(may Allaah have mercy on him).
Source: Islam Q&A
So before you use a name as part of Allah's
there must be evidence in the Qur'an and Sunnah
to justify this.
Names like Rasheed is not part of the names of Allah
and there is a difference of opinion on Saboor as
being among.
For Example:
Allah is Ar-Rahman and Ar-Rahim.
Allah says in Ta ha 20 vs 5 Ar-Rahman (Allah)
Istawa (rose over) the (Mighty) Throne (in a
manner that suits His Majesty).
Here Allah calls himself Ar-Rahman. This is also
present many times in the Qur'an as "In the name of
Allah, Ar-Rahman, Ar-Rahim".
Allah is Ash-Shaf' (i.e. the Healer)
Aisha reported: When the Messenger of Allah, peace
and blessings be upon him, would visit a sick person,
he would say, “Take away the pain, O Lord of all
people, and give healing for you are
Ash-Shaf' (i.e.
the Healer). There is no healing but your healing, a
healing that leaves no trace of illness.”
Source: Ṣaḥīḥ al-Bukhārī 5351, Ṣaḥīḥ Muslim 2191
To be continued.

https://islamqa.info/en/answers/48964/what-are-the-guidelines-concerning-names-which-may-correctly-be-attributed-to-allaah-may-he-be-exalted