Abdullah saw a man who was praying with his feet together. He said: "He is going against the Sunnah; if he shifted his weight from one to the other that would be better."
Sunan an-Nasa'i Book 11, Hadith 17
← Previous Hadith "I prayed beside Ibn Umar and put my hand on my waist, and he did this to me-knocked it with his hand. When I had finished praying I said to a man: 'Who is this?' He said: "Abdullah bin Umar.' I said: 'O Abu Abdur-Rahman, why are you angry with me?' He said: 'This is the posture of crucifixion, and the Mesenger of Allah (ﷺ) forbade us to do this.'"

Sunan an-Nasa'i Book 11, Hadith 16 Next Hadith → He saw a man praying with his feet together. He said: "He is not following the Sunnah. If he were to shift his weight from one to the other I would like that better."

Sunan an-Nasa'i Book 11, Hadith 18