Final answer:
Hazrat Ali's sword is not specifically mentioned in the Holy Dua. It is more commonly found in Islamic history and literature rather than standard prayers.
Step-by-step explanation:
The reference to Hazrat Ali's sword is not specifically mentioned in the Holy Dua itself. The Holy Dua is a prayer in Islam, and its content primarily revolves around supplications and seeking blessings from Allah. Hazrat Ali, who is highly revered in Islam, particularly in the Shi'a sect for his wisdom and valor, is known for his sword named Zulfiqar. However, the mention of his sword is more commonly found in Islamic history and literature rather than in standard prayers like the Holy Dua.
Therefore, the correct answer to the question 'In what part of the Holy Dua is Hazrat Ali's sword mentioned?' would be d) None of the above.