'Fatimah (AS) is part of me'

He said: Abul Hasan Ali b. Khalid al-Maraghi reported to me from Abul Qasim al- Hasan b. Ali b.al-Hasan al-Kufi, who reported from Ja'far b. Muhammad b. Marwan al- Ghazzal, who reported from his father, who reported from Abdullah b. al-Hasan al- Ahmasi who reported from Khalid b. Abdillah, from Yazid b. Abu Ziyad, from Abdullah b. al-Harith b. Nawfil, who reported from Sa'd b. Malik, meaning Ibn Abi Waqqas,
who said:

I heard the messenger of Allah, peace be upon him and his progeny, say: "Fatimah is a part of me; whoever pleases her, pleases me, and whoever displeases her, displease me. She is dearer to me than all beings."

(Ref: Al-Amali Shaikh Mufeed: The Thirteth Assembly Hadees No.2)