Salma (may Allah have mercy on her) said: I went in to Sayyidah Umm Salamah (may Allah be pleased with her) and she was weeping. I asked: "What makes you weep?" She said: "I saw the Messenger of Allah (peace and blessings be upon him), that is, in a dream, and there was dust on his (peace and blessings be upon him) head and beard. I said: 'O Messenger of Allah, what has happened to you?' He (peace and blessings be upon him) said: 'I have just now witnessed the killing of Husayn.'"
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 20184