7. Ali ibn Muhammad has narrated from Sahl ibn Ziyad from Muhammad ibn al-Husayn ibn Shammun from ‘Abd Allah ibn ‘Abd al- Rahman from Misma’ abu Sayyar who has said the following
“Abu ‘Abd Allah (a.s.), has said, “The Messenger of Allah has prohibited speaking jargon language in Masjid (expressions understood by two people or a group only).’”