The Prophet Muhammad taught that "this Quran was revealed to be recited in seven ahruf (modes), so recite whichever of it is easy for you" (Sahih al-Bukhari 4992). Scholars have long discussed exactly what "seven ahruf" means — the most widely accepted view is that it refers to a degree of flexibility Allah granted the early Arab tribes, who spoke various dialects, so the Quran could be recited in slightly different but equally valid ways without changing its meaning. This flexibility eased memorization for the earliest Muslims. The "seven ahruf" should not be confused with the qira'at (readings), which are the specific transmitted recitation traditions — such as those of Hafs, Warsh, and Qalun — each traced through a chain of reciters back to the Prophet. Ten qira'at are recognized as mutawatir (mass-transmitted and authentic), each associated with a renowned reciter and later transmitters. All differ only in minor matters of pronunciation, vowelling, or word form, never in core meaning or law. Most of the Muslim world today reads according to the Hafs 'an 'Asim recitation, while parts of North and West Africa commonly use the Warsh 'an Nafi' recitation.
Q&A · Quran
What are the "seven ahruf," and how do they relate to the different qira'at (recitations) of the Quran?
References
Sahih al-Bukhari 4992
Informational, not a personal fatwa. Consult a qualified scholar for rulings on your situation.