‏الحج : Hadeeth No:2836 Hafsa (Allaah be pleased with her) said: Messenger of Allaah; the rest of the hadith is the same and (the concluding words of the Prophet):" I won't put off Ihram until I have sacrificed the animal."...

‏الصلاة : Hadeeth No:1622 'A'isha reported that the Messenger of Allaah (sallAllaahu alayhi wa sallam) used to observe Witr every night, and he would (at times) complete his Witr at the end of the night....