17. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad ibn ‘Isa from Ali ibn al-Nu’man from Fudayl ibn ‘Uthman from abu ‘Ubaydah who has said the following: “I heard abu Ja’far saying, ‘When two believing people meet and shake hands, Allah turns to them with His face and sins began to fall from their faces until they depart from each other.’”