What is the ruling on reading the Qur’an with only the diacritics (tashkeel) for ease of review, and in individual prayers such as Qiyam al-Layl (night vigil) and Duha (mid-morning prayer) to achieve a greater quantity of recitation, especially when time is occupied with observing the rules of Tajwid?

Some aspects of Tajwid (Quranic recitation rules) are obligatory, which include pronouncing letters from their correct articulation points and giving them their due rights and characteristics, as well as observing the vowel marks (tashkeel). Other aspects are recommended, which include observing matters beyond that, such as prolongations (madd) and nasalization (ghunnah), and similar rules.

Sheikh Ibn Uthaymeen, may Allah have mercy on him, clarified that Tajwid is for improving the voice and is not obligatory. As long as a person pronounces the letters with their correct dammah (u-vowel), fat-hah (a-vowel), kasrah (i-vowel), and sukoon (no vowel), then Tajwid is merely an enhancement of the pronunciation. Reciting the Quran while observing the vowel marks and pronouncing letters from their correct articulation points is permissible and there is no harm in it, even if the rules of Tajwid, such as madd and ghunnah, are omitted.