Yahya related to me from Malik from Sadaqa ibn Yasar that al- Mughira ibn Hakim saw Abdullah ibn Umar sit back from the two sajdas of the prayer onto the top of his feet. When he had finished, al- Mughira mentioned it to him, and Abdullah ibn Umar explained, "It is not a sunna of the prayer. I do it because I am ill."
Muwatta Malik Book 3, Hadith 53
← Previous Hadith Yahya related to me from Malik from Abdullah ibn Dinar that he had seen Abdullah ibn Umar with a man praying at his side. When the man sat in the fourth raka, heput both feet to one side and crossed them. When Abdullah finished, he disapproved of that to him, and the man protested, "But you do the same." Abdullah ibn Umar said, "I am ill."

Muwatta Malik Book 3, Hadith 52 Next Hadith → Yahya related to me from Malik from Abd ar-Rahman ibn al-Qasim that Abdullah ibn Umar told him that he used to see Abdullah ibn Umar cross his legs in the sitting position of the prayer.He said, "So I did the same, and I was young at the time. Abdullah ibn Umar forbade me and said, 'The sunna of the prayer is that you keep your right foot vertical and lay your left foot down.' I said to him, 'But you do the same (as I did).' He said, 'My feet do not support me.' "

Muwatta Malik Book 3, Hadith 54