Nur ed-Din al-Musafir was a man of the 12th century who traveled extensively in Asia, Africa and Europe and wrote memoirs of his visits. According to a rare manuscript in Persian, al-Musafir described a visit to Cordoba and his meeting with a man who said he had seen the cup of Isa. That man saw it near the source of a river which he reached after traveling south from an oasis. Muhammad Ali al-Jawf was a scholar who studied al-Musafir's writings in Qom and in 1909 shared this important information with Henry Jones.