And from him, from Fadalah, from Aban, from Abd al-Rahman ibn Abi Abdillah. He said:
I asked Abu Abdillah عليه السلام, peace be upon him, about a man who fears a wild beast or a thief, how should he pray? Imam عليه السلام said: “He should say the takbir and gesture with his head.”
Ali Akbar al-Ghaffari
Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 3, p. 189