ANSWER:

There isn’t any specific list that is authentic. There are names that are agreed upon and other that are an issue of dispute. 

Recently I have come to know that the 99 names of Allah are weak, (the hadith is sahih but not the names) The names have been classed weak by tirmidhi, ibn majaah and others.

Names and Attributes of Allaah | October 18, 2018 9:10 pm
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Is the name “ALI” of the names of Allah , if it is would it be allowed for a Person to say “YA ALI” with the intention to call allah . Because the Shia say “ya Ali” do call upon the Sahabi Ali ra.
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Authenticity of the 99 names of Allah, I’ve heard only 69 names are authentic. Is it true? What about the other names that we use?