The Believer and the Hypocrite separate in Ramadan

Abu Hurayra, may Allah be pleased with him, narrated from the Messenger of Allah, peace and blessings upon him:

This month of yours has provided you with a shade, with the pledge of the Messenger of Allah (PBUH). For Muslims there has been no month more auspicious than this month. And for hypocrites, there has been no worse month than this.

Undoubtedly, Allah writes the thawab (reward for good deeds that is tallied on qiyamah/judgment day) and nafila (optional, supererogatory practice of worship) of the Believer before He lets him enter this month; and He writes the ithm (negative reward for bad deeds that is tallied on judgment day; opposite of thawab.) and grievances of the hypocrite. This is because the believer prepares supplies in this month to perform worship well.

On the other hand, the hypocrite searches, in this month, for believers' heedlessness and faults. This is an opportunity. The believer makes good use of it. (at-Targhib wa’t-Tarhib, 2:432)