Proof of Ijazah with Isnad back to Prophet ﷺ

An ijazah (Arabic: الإِجازَهْ ‎) is a certificate used primarily by Muslims to indicate that one has been authorized by a higher authority to transmit a certain subject or text of Islamic knowledge.                                                                                                                                                                                                                                                                 This usually implies that the student has learned this knowledge through face-to-face interactions "at the feet" of the teacher.