What is the authenticity of the hadith narrated on the authority of Muzaynah: "Go forth, Muzaynah! No youths migrated and turned to Allah except that the swiftest of them to perish was among them. Go forth, Muzaynah! You have not migrated. None of them will meet the Dajjal"?

The aforementioned Hadith is Gharib (uncommon), and it was only recorded through one chain of transmission. Its isnad (chain of narrators) is obscure because its narrators (Misawir, his father, and his grandfather) are unknown, and no commendation or disparagement has been mentioned concerning them.