About Ibn Sirin
Muhammad Ibn Sirin was a Muslim tabi' as he was a contemporary of Anas ibn Malik. He is claimed by some to have been an interpreter of dreams, though others regard the books to have been falsely attributed to him. Once regarded as the same person as Achmet son of Seirim, this is no longer believed to be true, as shown by Maria Mavroudi.
Biography source:
Wikipedia
