Musannaf Ibn Abi Shaybah 8903 — Laylat al-Qadr and which night it is

Abu Aqrab al-Asadi said: We came to Sayyiduna Ibn Mas'ud (may Allah be pleased with him) and found him on the roof of the room. We heard him say, before coming down: "Allah and His Messenger spoke the truth." We said to him: "We heard you say, before you came down, 'Allah and His Messenger spoke the truth.'" Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) said: "Laylat al-Qadr is in the seven (nights) of the second half of Ramadan. Its sign is that when the sun rises on that day, it is white and without rays. When I looked at the sun, I found it in the very state in which I had been told, so out of joy I proclaimed the greatness of Allah."