Musannaf Ibn Abi Shaybah 8539 — The eclipse prayer: how many rakahs it

Abu al-Khayr bin Tamim bin Hadhlam said: Once darkness came over Kufah. Hani bin Nuwayrah came, and a companion of his was with him. The two of them went to Tamim bin Hadhlam, who was one of the companions of Sayyiduna Abdullah (bin Mas'ud) (may Allah be pleased with him), and found him praying. He said to the two of them: "Go back to your homes and pray until what you see clears, for that is what used to be commanded."