3- Whoever does not rise in the last part of the night should perform Witr before going to sleep, lest its time slip away. This instruction was meant for Abu Hurayrah and those like him who tend to sleep through the late-night Witr.

Lessons drawn from the ḥadith
1- It is recommended to fast three days of every month, preferably the thirteenth, fourteenth, and fifteenth. Qatadah ibn Milḥān—whose report is found in the Sunan collections—said: “The Messenger of Allah ﷺ used to command us to fast the white days, the thirteenth, fourteenth, and fifteenth, and he said, ‘They equal fasting the whole time.’”
2- It is recommended to pray Duḥā regularly for anyone who does not observe the night prayer, so that he will not miss acts of devotion by night or by day.
3- Witr should be offered before sleep by the one who thinks he will not rise at the end of the night. Whoever is confident that he will wake up should delay it until then; if he misses it because of sleep or forgetfulness, it is preferable that he make it up.
4- These three rulings are among the precious counsels of the Prophet ﷺ. They deserve careful attention and diligent practice because of their immense benefit and lofty rank.

Hadith Five
Muhammad ibn ʿAbbad ibn Jaʿfar reported:
I asked Jābir ibn ʿAbd Allah, “Did the Prophet ﷺ forbid fasting on Friday?” He answered, “Yes.”
Muslim adds the phrase: “By the Lord of the Kaʿbah!”

Hadith Six
Abu Hurayrah—may Allah be pleased with him—said:
I heard the Messenger of Allah ﷺ say, “None of you should fast on Friday unless he fasts a day before it or a day after it.”

Overall meaning
Because Friday is the weekly festival, just as the Festivals of Fitr and ʿAdḥā are the yearly festivals, and the festive nature of it