Safwan, from Ibn Muskan, from Layth, who said:
I asked Abu Abdillah عليه السلام about prayer during the summer, in the short nights, may I pray at the beginning of the night? Imam عليه السلام said: "Yes."
Ali Akbar al-Ghaffari
Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 2, p. 179
