What was the first sentence that the Imam uttered after the martyrdom of Hajj Agha Mustafa?

A Memories of Hojjat al-Islam wa Muslimin Seyyed Ahmad Khomeini; Payam Enghelab; Vol. 70, p. 51

Imam Khomeini's significant role in managing imposed war and sacred defense

In a videoconference with the participants of a ceremony honoring the veterans of the Sacred Defense (Sep. 21, 2020), the Leader of the Islamic Revolution Ayatollah Seyyed Ali Khamenei described the leadership and command of the late Imam Khomeini as being very sensitive and amazing from the beginning to the end of the Sacred Defense.

Imam Khomeini: The religion of Islam, whose scripture is the Quran, has been fully preserved. Not ...

Sahifeh-ye-Imam. V 4. P 423

Imam Khomeini defined major objectives of holy scripture of Quran

Imam Khomeini used to attach special significance to reciting the holy scripture of Quran during holy month of Ramadan.

Imam Khomeini's Strategic Management in the Imposed War.

Imam Khomeini's management characteristics are based on his personal and organizational behavior and Islamic values. The results indicated that Imam Khomeini's leadership and management model in the imposed War was a combination model based on three levels of the individual (personality), behavior, and society's needs.

Imam Khomeini denounced US' hegemonic agenda, described American officials as untrustworthy

Imam once said that the US never “refrains from committing any crime in order to gain political, economic, cultural and military dominance and hegemony”

Unity, an example of the blessings of Islamic Revolution

Imam Khomeini: You all together through unity of expression, a true word not a false one, uttered ...

Sahifeh-ye-Imam. V 7. P 6