And from him, from Ali ibn Sayf, from Muhammad ibn Ali, who said:
I (narrator) accompanied (Imam) al-Ridha عليه السلام, during travel, and I saw Him عليه السلام pray Maghrib when the darkness appeared from the east, meaning the blackness (of night).
Ali Akbar al-Ghaffari
Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 2, p. 31