Riyad as-Salihin — Hadith #38771

On the authority of Anas, may God be pleased with him, that the Messenger of God, may God bless him and grant him peace, said: “Put your rows together, keep them close together, and keep your necks in line, for by the One in whose hand is my soul, I see Satan entering through the row, as if it were a deletion.” ((An authentic hadith narrated by Abu Dawud with a chain of transmission according to Muslim’s conditions)).