Sayyiduna Ibn Abbas (may Allah be pleased with them both) said: When Surah al-Nasr was revealed, the Messenger of Allah (peace and blessings be upon him) called Sayyidah Fatimah (may Allah be pleased with her) and said: "News of my death has been given to me." She wept. The Messenger of Allah (peace and blessings be upon him) said to her: "Do not weep, for you will be the first of my family to join me." So she laughed. One of the wives of the Prophet (peace and blessings be upon him) saw her and said to her: I saw you weep and then laugh. She said: He (peace and blessings be upon him) said to me: "News of my death has been given to me," so I wept; then he said: "Do not weep, for you will be the first of my family to join me," so I laughed.
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 19230