[1] He took over military leadership of the tribe after his father al-Tufayl ibn Malik was slain in combat against the Khath'am in south Arabia.
[1] After losing an eye in a battle against the Khath'am at Fayf al-Rih, he was considered unsuitable to command the Banu 'Amir.
[1] Arbitration did not result in a conclusive decision, but 'Amir ibn al-Tufayl nonetheless regained his good repute during the suit, partially due to the support of the poet al-A'sha.
[1] This proved essential to his reinstatement as leader of the Ja'far clan, and by extension the Banu 'Amir, when his uncle 'Amir Abu Bara ibn Malik died in 624/25.
[2] Much of his poetry is pervaded by the tribal ghazwa (warrior ethos),[3] though some verses are "moving through its humanity", according to Orientalist W. Caskel, such as no.