The lawful, the unlawful, the doubtful matters between them, and the limits Allah has set.
3 hadith
Jundub (May Allah be pleased with him) said: The Prophet (ﷺ) said, "He who so acts to show off, Allah will disgrace him on the Day of Resurrection, and he who does good deeds so that people (may hold him in high esteem), Allah will expose his hidden evil intentions before the people on the Day of Resurrection."
'Abdullah bin 'Amr bin Al-As (May Allah be pleased with them) said: The Prophet (ﷺ) said, "Of the major sins are: Associating anything in worship with Allah, disobedience to the parents, killing without justification and taking a false oath (intentionally).".Another narration is: A bedouin came to the Prophet (ﷺ) and asked him: "O Messenger of Allah, what are the cardinal sins?" He (ﷺ) replied, "Associating anything with Allah in worship." The man asked: "(What is) next?" The Messenger of Allah (ﷺ) replied, "Al-Yamin Al-Ghamus." He asked: "What do you mean by Al-Yamin Al-Ghamus?" The Messenger of Allah (ﷺ) replied, "Swearing falsely to usurp the property of a Muslim."
'Aishah (May Allah be pleased with her) reported: The Ayah: "Allah will not punish you for what is unintentional in your oaths ..." was revealed in respect of those persons who are in the habit of repeating: 'No, by Allah'; and 'Yes, by Allah.'
About this text. Arabic and English text from the hadith-json project (github.com/AhmedBaset/hadith-json), which collected it from sunnah.com. The project states no licence and the English is a modern translation; it is published here on the site owner's decision. Hadith are numbered in the book's own order.