Shia scholar Mir Ali at-Tahrani in his book “Tafsiru Muqtanayatid Dar” (1/38) said:

Translation:

In report: “Indeed people of Israil divided into 72 sects, and my nation will divide into 73 sects, all in the fire expect one”. He was asked what is that saved sect, and he answered: “What I am upon…”.

In the footnote you can see how this shia scholar attributed this report to book of Majlisi “Bihar al-Anwar” 28 volume 30 page. Let us check original source.

Majlisi in “Bihar al-Anwar” (28/29-30) narrated:

Translation:

“Indeed people of Israil divided into 72 sects, and my nation will divide into 73 sects, all in the fire expect one”. He was asked what is that saved sect, and he answered: “What I am upon and my companions“.

Can you just see how difficult for some shias to mention companions with good! So difficult, that they prefer to tamper, edit, change the prophetic reports.