جَرَسٌ

[A bell;] a thing well known; (Msb;) the thing that is hung to the neck of the camel (S, Mgh, K) &c., and that makes a sound: (Mgh:) or, according to some, the [little round bell called] جُلْجُل: (TA:) and also that which is struck [to make it sound]: (Lth, S, K:) the thing that is struck by the Christians at the times of prayers: (Har p. 616:) plural أجْرَاسٌ. (Mgh, Msb.) It is said in a tradition, لَا تَصْحَبُ المَلَايءِكَةُ رُفْقَةً فِيهَا جَرَسٌ [The angels will not accompany an assemblage of persons journeying together among whom is a bell]: (S, TA:) the reason is said to be, because it guides others to them; for Mo- hammad liked not to let the enemy know of his approach until he came upon them suddenly. (TA.)