It is narrated from Lady Fatimah Zahra (SA) who said: We the Ahlul Bait (AS) are means of connection between God and people.
We are the pure and sacred ones chosen by Allah (SWT). We will be the proofs and guides, and we are the inheritors of Divine prophets [1].
[1] Sharh-e-Nahjul Balaghah, Ibn Abel Hadeed, Vol. 16, Page 211.
Source: en.shafaqna.com