الواحد
كلمة (الواحد) في اللغة لها معنيان، أحدهما: أول العدد، والثاني:...
Abu Hurayrah (may Allah be pleased with him) reported that the Prophet (may Allah's peace and blessings be upon him) said: "The five (daily) prayers, and Friday prayer to the next Friday prayer, and Ramadan to the next Ramadan, are expiation of the sins committed in between them, so long as major sins are avoided."
The five daily prayers expiate the sins committed between them except the major sins. Similarly, the sins committed between Friday prayer and the next Friday prayer are expiated apart from major sins, and the same applies to fasting in Ramadan and fasting in the next Ramadan.