A man told his wife:

Go to the daughter of the Prophet of Islam (PBUH), Lady Fatimah Zahra (SA) and ask her: Am I a Shia of Ahlul Bait (AS)? That woman went and asked the question and Lady Fatimah Zahra (SA) replied: Tell your husband, if you act upon what we have commanded you, and avoid what we have prohibited, you will be one of Shias; otherwise you are not [1].

[1] Awalemul Oloom wal Mo’arif, Vol. 1, Page 906.

Source: en.shafaqna.com