It is narrated from Sayyiduna al-Miswar bin Makhramah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) ascended the pulpit, praised Allah and extolled Him, and then said: "My daughter, meaning Fatimah, is a part of me; whatever troubles her troubles me, and whatever hurts her hurts me."
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 19214