´It was narrated from Abu Hurairah that the Prophet (ﷺ) said:` “When anyone of you gets up to pray at night, and his tongue stumbles over the words of the Qur’an, and he does not know what he is saying, let him lie down.”
Hadith Referenceسنن ابن ماجه / كتاب إقامة الصلاة والسنة / 1372
Benefit: The meaning of the Qur'an becoming difficult is that, due to drowsiness, reciting the Qur'an becomes difficult, and because of sleepiness, one is not even able to understand the words one is uttering. In such a case, one should stop the prayer and recitation, and lie down to sleep.
Source: Commentary on Sunan Ibn Mājah by Mawlānā ‘Atā’ullāh Sājid, Page: 1372
Narrated Abu Hurairah: The Messenger of Allah ﷺ as saying: When one of you gets up by night (to pray), and falters in reciting the Quran (due to sleep), and he does not understand what he utters, he should sleep.
Shaykh Umar Farooq Saeedi
1311. Commentary: Benefit: Due to the overpowering of sleep or fatigue caused by continuous prayer and recitation, the tongue may begin to falter. In such a situation, a person should take rest.
Source: Sunan Abu Dawood – Commentary by Shaykh Umar Farooq Saeedi, Page: 1311