It was narrated from Muhammad, the Messenger of Allah ﷺ, who mentioned several hadiths, among them that the Messenger of Allah 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."
و حدثنا محمد بن رافع حدثنا عبد الرزاق حدثنا معمر عن همام بن منبه قال هذا ما حدثنا
عن محمد رسول الله ﷺ فذكر أحاديث منها وقال رسول الله ﷺ إذا قام أحدكم من الليل فاستعجم القرآن على لسانه فلم يدر ما يقول فليضطجع