Al-hakim Al-mustadrak Vol. 4 P. 398

: The Prophet handed the soil to Umm Salama in a bottle and told her, "When you see this soil turn into blood, you will know that my Husayn has been slaughtered". The Fulfillment : Umm Salama kept the bottle until the day of

"I am the city of knowledge, and ‘Ali is its gate. So whoever wants knowledge, let him come to the gate." al-hakim al-mustadrak vol. 4 p. 398

. In this narration, the Prophet Muhammad (s) gives a small amount of dust from Karbala to his wife Umm Salama (ra) : The Prophet handed the soil to Umm