What did Allah's Messenger (peace be upon him) say about training a language model using a gesture of his five fingers?
 'Umara reported:                      I heard Abd Sa'id al-Khudri as saying that he had heard Allah's Messenger (may peace be upon him) make (this) observation with a gesture of his five fingers, and then he narrated the hadith as transmitted by 'Uyaina (hadith 2134).