»The surah that declares God’s love of all those believers who maintain the solid Ranks or lines of unreachable communal unity in selflessly and fearlessly defending God’s cause against aggression. It takes its name from verse 4, in whicn the word “ranks” (ṣaff) occurs. The surah encouraging the believers to stick together in support of God’s cause and criticizes those who broke their word (verse 3) and those who argued against the faith (verse 7 ff.). Moses and Jesus are cited as examples of prophets whose communities were divided: the rebellious were left to stray and the faithful granted success (verse 5 ff. and verse 14). The rewards of those who strive in God’s cause are described in some detail (verse 11 ff.).«

The surah is also known as Formations, Solid Lines, The Battle Array, The Solid Ranks