“Rajaz” is the name used for the short poems with a few couplets recited improsively on battlefields, in poetic repartees and daily life in Pre-Islamic Period. Rajaz, which means tremor and spasm, was used like meter of prosody in Islamic periods. The origin of rajaz is “saj” (rhymes without meter) and it is considered as initial stage of Arabic Poetry. As time passed, saj developed and turned into rajaz in simple meters. Mostly, it was not regarded as a poem because of some religious risks and its relationship with saj. Since it was considered as a type of folk poem, the poets of Pre-Islamic and Islamic periods did not give importance to rajaz.