صحیح مسلم · Hadith 969

Jabir b. Samura reported: The Messenger of Allah ( ‌صلی ‌اللہ ‌علیہ ‌وسلم ‌ ) came to us and said: How is it that I see you lifting your hands like the tails of headstrong horses? Be calm in prayer. He (the narrator) said: He then again came to us and saw us (sitting) in circles; he said: How is it that I see you in separate groups? He (the narrator) said: He again came to us and said: Why don't you draw yourselves up in rows as angels do in the presence of their Lord? We said: Messenger of Allah, bow do the angels draw themselves up in rows in the presence of their Lord? He (the Holy Prophet) said: They make the first rows complete and keep close together in the row.