(1) 斋戒（Siyaam）在阿拉伯语中的意思是戒除；在伊斯兰教中，它指从黎明到日落，在事先立下斋戒意图（niyyah）的前提下，戒除使斋戒无效的事物。

(1) Siyaam in Arabic means abstaining; in Islam it means abstaining from things that break the fast, from dawn until sunset, having first made the intention (niyyah) to fast.

斋戒的裁决。

Ruling on fasting.

(2) 乌玛一致认为斋戒斋月是义务的，其证据载于《古兰经》和圣训之中。安拉说（其词义为）：

(2) The ummah is agreed that fasting the month of Ramadaan is obligatory, the evidence for which is in the Qur’aan and Sunnah. Allaah says (interpretation of the meaning):