It is narrated from Sayyiduna Tamim Dari (may Allah be pleased with him) that the Prophet (peace and blessings of Allah be upon him) said: "The first thing for which a servant will be called to account will be his prayer. If he has performed it completely, it will be recorded as complete. Otherwise, Allah Almighty will say: 'See! Does My servant have any voluntary prayers?' so that the obligatory prayers may be completed through them. The same will be the case with zakat, and the reckoning of other deeds will also be in this manner."