Pray your witr before going to bed if you fear you will sleep through till morning; delay your witrs until after waking up for Tahajjud if you hope you can stay awake during the last part of the night .

This hadith is about praying witr before or after sleep. The hadith was narrated by Yahya from Malik who heard it from A'isha, wife of Prophet Muhammad ﷺ. She said that if someone fears they will sleep through till morning then they should pray their witr before sleeping and if someone hopes to wake up for the last part of the night then they should delay their witr prayer until then. This hadith teaches us that we should be mindful when it comes to our religious obligations and take advantage of any opportunity we have in fulfilling them. We must also remember that Allah is always watching us and He knows what we are doing even when no one else does so we must strive to do our best in fulfilling our religious obligations at all times.