Ḍamrah narrated—from al-Layth ibn Saʿd—that he said:
“ʿUmar looked at ʿAmr ibn al-ʿĀṣ and remarked, ‘It is not fitting for Abū ʿAbd Allāh to set foot on earth except as a commander.’ (1)

ʿAmr was present at the Battle of Yarmūk, where he fought with outstanding bravery.

It is also reported that Abū ʿUbaydah sent him forth; he made peace with the people of Aleppo and Antioch and seized the remainder of Qinnasrīn by force.

Khalīfa says: ʿUmar placed ʿAmr in charge of Palestine and the Jordan, then wrote to him; so he proceeded to Egypt, conquered it, and ʿUmar dispatched al-Zubayr as reinforcements for him. (2)

Ibn Luhayʿah states that ʿAmr ibn al-ʿĀṣ captured Alexandria in the year 21 AH, and that its people rebelled in the year 25 AH. (3)

Al-Fasawī records that the fortress of Luyun was opened in the year 20 AH, with ʿAmr commanding the operation. (4)

Khalīfa further reports that ʿAmr took Tripoli in the West in the year 24 AH—though others say it was in the year 23. (5)

Khālid ibn ʿAbd Allāh—through Muḥammad ibn ʿAmr, from his father, from his grandfather—narrated:
ʿAmr ibn al-ʿĀṣ said, “A Muslim army set out with me as its commander until we reached Alexandria. A notable among them declared, ‘Bring out to me a man with whom I may speak and who will speak with me.’ I said, ‘No one shall go out to him but I.’ So I went forth with my interpreter, and he came out with his interpreter, until two pulpits were set up for us. He asked, ‘Who are you?’ I replied, ‘We are Arabs, and we are among the people of—’”