المُرْجِفَانِ
1.
The basin and ewer (الطَّسْتُ وَالإِبْرِيقُ) [that are used for washing the hands before and after a meal]: because they produce a sound when one of them is knocked against the other: as though that sound told of the completion of the meal, and excited [the persons that had partaken thereof] to rise. (Har p. 228.)
2.
وَالمُرْجِفُونَ فِى المَدِينَةِ, in the Qur'an, 33:60: see 4, in two places. [This article is wanting in the copies of the L and TA to which I have had access.]