The Prophet ﷺ said, "When one of you rises at night and the Quran becomes difficult on his tongue so that he does not know what he is saying, let him lie down."
حدثنا يعقوب بن حميد بن كاسب حدثنا حاتم بن إسمعيل عن أبي بكر بن يحيى بن النضر عن أبيه
أن النبي ﷺ قال إذا قام أحدكم من الليل فاستعجم القرآن على لسانه فلم يدر ما يقول اضطجع
[Sahih] * Abu Bakr is unknown in status, but his hadith has corroborating narrations in Muslim, Prayer of the Traveler, chapter "The command..." etc, no. 787, and elsewhere. Whoever dozes during his prayer or the Quran becomes confused for him