Bismillahi was solaatu was salaam ala man laa nabiy ba’dahu..
I didnt forget i had a discussion with you, but the fact is, my time hasn’t permit me to give a response, as i didnt want to give a short response (as it could make the matter more complicated to you).,
still not that am fully chanced now, but just to make use of the little have gotten.. I seek Allah’s aid.

I have choosen to reply you in these method perharps you may grasp the subject in its through image…

Allah subhanahu wa ta’ala, sent His messengers and His books for the sole purpose of tawheed, and the to disbelieve in whatever that is been worship besides Him..and Allah has made that, the only religion He will accept and Nothing other than it, i.e, the believe in Allah (by singling Him out with all forms of worship without associating anyone along with Him) and Disbelieving in All that is being worship besides Him, fulfiling one aspect of it (i.e believing in Allah and not disbelieving in all that is worship besides him, or disbelieving in All that is been worship besides Him, without believeing in Him), will not be giving consideration by Allah.. Allah said, “Verily the Only religion with Allah is Islaam” (al-imron).

Allah named it Islaam..(i.e the beliving in Allah alone, and disbelieving in whatever is being worshipped beside Him), and Allah made it known that, nothing other than it will be accepted from anyone, He said “And whoever seeks other than Islaam as a religion, it will not be accepted of him” (al-imron),
and Islaam is : believing in Allah alone and disbelieving in whatever that is been worship besides Him, Allah said “And whoever disbelieve in tooghut and believe Allah, has indeed grasp the trustworthy hand-hold which willnever break” (al Baqoroh). Thus these ayaah strengthens that whoever fufill one tenets of islaam (believing in Allah), and didnt fufill the other (disbelieving in all that is being worshipped other than Allah), has indeed not grasp the hand-hold, and the hand-hold is Islaam, which means such a person hasn’t enter into islaam..

Sheikh muhammad ibn abdil wahaab said (what means) “verily Allah made the disbelieving in whatever is being worshipped other than Him the first obligation that should be fufill before the actual believing in Him” end quote..

Whoever believe in Allah without disbelieving in whatever is being worshipped besides Him, is not yet a muslim even if such prays thousands of solah and fast, and do hajj..whatever act of worship will not be accpted from him..becuase such has not entered into islaam. Rather such is from amongst those who Allah says about “shall we not inform you about the greatest loosers?, they are those whose effort has been lost in the dunya, while hoping that they are actually acquiring good” (al-kahf)..

If you then affirm the fact that Islaam is the beilieving in Allah and the disbelieving in All that is been worship besides Him..
Then lets elaborate what is the actual meaning of (eemanu bi Llah wa kufr bi kulli maa yu’badu min duunih), believing in Allah and disbelieving in whatever is been worship besides Him..

The salaf has preety good explanation of these entities..ﻭﺍﻹﻳﻤﺎﻥ ﺑﺎﻟﻠﻪ ﻫﻮ ﺃﻥ ﺗﻌﺘﻘﺪ ﺃﻥ ﺍﻟﻠﻪ ﻫﻮ
ﺍﻹﻟﻪ ﺍﻟﻤﻌﺒﻮﺩ )ﺑﺤﻖ ( ﻭﺣﺪﻩ ﺩﻭﻥ ﻣﻦ
ﺳﻮﺍﻩ، ﻭﺗﺨﻠﺺ ﺟﻤﻴﻊ ﺃﻧﻮﺍﻉ ﺍﻟﻌﺒﺎﺩﺓ ﻛﻠﻬﺎ
ﻟﻠﻪ، ﻭﺗﻨﻔﻴﻬﺎ ﻋﻦ ﻛﻞ ﻣﻌﺒﻮﺩ ﺳﻮﺍﻩ، ﻭﺗﺤﺐ
ﺃﻫﻞ ﺍﻹﺧﻼﺹ ﻭﺗﻮﺍﻟﻴﻬﻢ، ﻭﺗﺒﻐﺾ ﺃﻫﻞ
ﺍﻟﺸﺮﻙ ﻭﺗﻌﺎﺩﻳﻬﻢ. ﻭﻻ ﻳﺤﺼﻞ ﺍﻹﻳﻤﺎﻥ ﻷﺣﺪ
ﺣﺘﻰ ﻳﻜﻮﻥ ﻫﻮﺍﻩ ﺗﺒﻌﺎً ﻟﻤﺎ ﺟﺎﺀ ﺑﻪ ﺍﻟﺮﺳﻮﻝ
ﺻﻠﻰ ﺍﻟﻠﻪ ﻋﻠﻴﻪ ﻭﺳﻠﻢ ﻭﻟﻺﻳﻤﺎﻥ ﺣﻼﻭﺓ ﻗﺪ
ﻳﺠﺪﻫﺎ ﺍﻹﻧﺴﺎﻥ ﻭﻗﺪ ﻻﻳﺠﺪﻫﺎ، ﻭﻫﻮ ﻳﺘﺠﺰﺃ،
ﻭﻻ ﻳﻠﺰﻡ ﺇﺫﺍ ﺫﻫﺐ ﺑﻌﻀﻪ ﺃﻥ ﻳﺬﻫﺐ ﻛﻠﻪ،
ﻭﻧﻔﻴﻪ ﻻﻳﺪﻝ ﻋﻠﻰ ﺍﻟﺨﺮﻭﺝ ﻣﻦ ﺍﻹﺳﻼﻡ