Majma al-Zawaid — Hadith 5060

Sayyiduna al-Faltan bin Asim (may Allah be pleased with him) narrates: I came to the Prophet (peace and blessings be upon him). We were sitting waiting for him when he came out to us with signs of anger on his face. He sat for a long time without speaking. Then this state left him, and he said: "I came out to you having had Laylat al-Qadr made clear to me, and the Messiah of misguidance (that is, the Dajjal) made clear to me. I came out to you to tell you about it and to give you news of it. In the mosque I met two men who were quarrelling with each other, with Satan between them. I tried to separate the two of them, and meanwhile that knowledge was taken away from me. It (Laylat al-Qadr) is in the last ten nights. As for the Dajjal, the hair of his forehead will have receded, his eye will be wiped out (that is, he will be one-eyed), his neck will be broad, and he will bear a resemblance to Ibn al-Uzza (the narrator is in doubt; perhaps the words are:) Abd al-Uzza bin so-and-so." In one narration the words are: "As for Laylat al-Qadr, seek it in the last ten nights."
Al-Tabarani recorded it in al-Mu'jam al-Kabir, and its narrators are the narrators of the Sahih.