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The Sin of Hurting the Parents
Hurting one’s parents immensely (`uquq) is among the major sins. Allâh threatened the one who does it with severe torture in Hellfire. This means to harm either or both parents immensely (causing them a lot of pain). Hurting one’s parents is unlawful whether it is severe or light.
https://www.islam.ms/en/?p=56
The Types of Blasphemy and Blasphemers (Kufr)
Blasphemy is the opposite of belief, just as darkness is the opposite of light. It is of three types: likening God to the creation (tashbih), contradicting (takdhib), and denying (ta^til). Blasphemers are of two types: one is the original blasphemer, the other one is the apostate (murtadd).
https://www.islam.ms/en/?p=9
How to fast the month of Ramadan. Integrals & Invalidators of Fasting
The obligation on the believers of fasting RamaDân is known from the Qur’ân and the Hadîth. It was explicitly stated in Verse 183 of Surat Al-Baqarah: {يَا أَيُّهَا الَّذِينَ آمَنُوا كُتِبَ عَلَيْكُمُ الصِّيَامُ كَمَا كُتِبَ عَلَى الَّذِينَ مِن قَبْلِكُمْ لَعَلَّكُمْ تَتَّقُونَ} which means: « O believers, Fasting is an obligation upon you as it was ordained upon the (Muslim nations) before you–to help you become pious. » Fasting was an obligation upon the nations before the nation of Prophet Muḥammad peace to be upon him, however, fasting the month of RamaDân in particular is a specification for the nation of Prophet Muḥammad peace to be upon him only.
https://www.islam.ms/en/?p=110