Sunan an-Nasa'i 1257

Suwayd ibn Nasr informed us; he said: ‘Abd Allah informed us, from Malik ibn Mighwal, who said: I heard al-Sha‘bi say: ‘Alqamah ibn Qays made a mistake in his prayer. They told him about it after he had spoken. He said: “Is that so, O one-eyed man?” He said: “Yes.” Alqamah unfolded his legs from their tucked-up sitting position, then performed the two prostrations of forgetfulness and said: “This is what the Messenger of Allah (ﷺ) did.” Malik ibn Mighwal added: I heard al-Hakam say: “Alqamah had prayed five rak‘ahs.”