Abdullah bin Umar reported,

A boy was murdered in secret, so Umar said, "If all the people of Sanaa had taken part in it, I would have executed them all."

Azami 6851

Sahih

عن ابن عمر

أن غلاما قتل غيلة، فقال عمر: لو اشترك فيها أهل صنعاء لقتلتهم.

الأعظمي 6851صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Retaliation and crimes
Chapter
Retaliation
Section
If a group collaborates in killing, retaliation is taken from all of them
Numbering
Jami al-Kamil 6851 (2nd edition)
Azami 6851