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

Al-Mustadrak 'ala al-Sahihayn (Vol. 4, p. 398) by Al-Hakim al-Nishapuri records a narration regarding the "Dust of Karbala," wherein the Prophet (ﷺ) gifted soil to Umm Salama (رضي الله عنها) that turned to blood upon the martyrdom of Imam Hussain. Al-Hakim deemed the report authentic (

The Content of Vol. 4, P. 398

Understanding Al-Hakim and His Work

This narration is frequently cited by scholars and researchers to explain:  al-hakim al-mustadrak vol. 4 p. 398

The "Hand of Allah": The phrase "the hand of Allah is with the group" is interpreted by many as a metaphor for divine support, protection, and success being granted to those who remain united rather than those who cause schisms. Al-Mustadrak 'ala al-Sahihayn (Vol

• Reject the narration as weak (following al-Dhahabi), or
• Interpret it in a way that does not contradict the consensus that Abu Bakr is the best of the Ummah after the Prophet.