Qur'an 4:71

يَـٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوا۟ خُذُوا۟ حِذْرَكُمْ فَٱنفِرُوا۟ ثُبَاتٍ أَوِ ٱنفِرُوا۟ جَمِيعًا

“O you who have believed, take your precaution and [either] go forth in companies or go forth all together.”

An-Nisaa 4:71 · Saheeh International