“The whole of the Qur’an is in Al-Fatihah, Al-Fatihah is in the Tasmiyyah...”

I believe this is in al-Kafi of Kulayni the Shia.

I am not aware of it in our Sunni Sources. Allāh Knows Best

 

There is a saying attributed to Sayyiduna Ali karamAllahu wajhulkarim to the effect of:

“The entire Qur’an is contained in Surah tul Fatihah. Surah tul Fatihah is contained in the Tasmiyyah. The Tasmiyyah is contained in the Baa. The Baa is contained in the Nuqtah.”​

There was a clip of Sayyid Madani Miya translated into English which I've lost where he adds to the saying:

“And I am the Nuqtah.”
​

Is the addition of “I am the Nuqtah” authentic, and what is the meaning?