The word(s) "intervals" appears 1 time(s) in 1 verse(s) in Quran in Saheeh International translation.

(1) And [it is] a Qur'an which We have separated [by intervals] that you might recite it to the people over a prolonged period. And We have sent it down progressively.

(سورة الإسراء, Al-Israa, Chapter #17, Verse #106)
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