Volume 2, Book 14, Number 66:
Narrated Ibn Abbas:
Once the Prophet (p.b.u.h) led the fear prayer and the people stood behind him. He said Takbir
(Allahu-Akbar) and the people said the same. He bowed and some of them bowed. Then he pros –
trated and they also prostrated. Then he stood for the second Raka and those who had prayed the
first Raka left and guarded their brothers. The second party joined him and performed bowing and
prostration with him. All the people were in prayer but they were guarding one another during the
prayer.