Hadith

Imam Sadiq (pbuh):

فمَنْ عَرَفَ فَاطِمَةَ حَقَّ مَعْرِفَتِهَا فَقَدْ أَدْرَكَ لَيْلَةَ اَلْقَدْرِ

a person who has truly grasped a deep understanding of Fatima (and who she is) has actually witnessed and experienced the Night of Ordainment.

Bihar al-Anwar, v.43, p.65