There are very intersting ahadith on this topic. One of them is "**A sahabi(ra) told the Prophet(may peace nd blessings be upon him) that there’s a woman who fasts all day and prays all night but hurts her neighbors with her words. The Prophet(SAW) said “Her place is in Hell”.
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Another one is "A man asked Prophet(SAW) three times “what is religion?” and for the three times Rasul Allah(SAW) replied "Good character and then the man asked again the same question and the Prophet(SAW) said “to not to become angry”.