What is said regarding the Witr prayer

Narrated Ibn Umar:

Once a person asked Allah's Apostle about the night prayer. Allah's Apostle replied, "The night prayer is offered as two Rakat followed by two Rakat and so on and if anyone is afraid of the approaching dawn (Fajr prayer) he should pray one Raka and this will be a Witr for all the Rakat which he has prayed before." Nafi' told that 'Abdullah bin 'Umar used to say Taslim between (the first) two Rakat and (the third) odd one in the Witr prayer, when he wanted to attend to a certain matter (during that interval between the Rakat).

حَدَّثَنَا عَبْدُ اللَّهِ بْنُ يُوسُفَ، قَالَ أَخْبَرَنَا مَالِكٌ، عَنْ نَافِعٍ، وَعَبْدِ اللَّهِ بْنِ دِينَارٍ، عَنِ ابْنِ عُمَرَ، أَنَّ رَجُلاً، سَأَلَ رَسُولَ اللَّهِ ﷺ عَنْ صَلاَةِ اللَّيْلِ فَقَالَ رَسُولُ اللَّهِ ﷺ " صَلاَةُ اللَّيْلِ مَثْنَى مَثْنَى، فَإِذَا خَشِيَ أَحَدُكُمُ الصُّبْحَ صَلَّى رَكْعَةً وَاحِدَةً، تُوتِرُ لَهُ مَا قَدْ صَلَّى ".

Narrated Ibn 'Abbas:

Once I passed the night in the house of Maimuna (his aunt). I slept across the bed while Allah's Apostle and his wife slept length-wise. The Prophet slept till midnight or nearly so and woke up rubbing his face and recited ten verses from Surat "Aal-Imran." Allah's Apostle went towards a leather skin and performed ablution in the most perfect way and then stood for the prayer. I did the same and stood beside him. The Prophet put his right hand on my head, twisted my ear and then prayed two Rakat five times and then ended his prayer with Witr. He laid down till the Muadh-dhin came then he stood up and offered two Rakat (Sunna of Fajr prayer) and then went out and offered the Fajr prayer. (See Hadith No. 183, Vol. 1)

حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مَسْلَمَةَ، عَنْ مَالِكٍ، عَنْ مَخْرَمَةَ بْنِ سُلَيْمَانَ، عَنْ كُرَيْبٍ، أَنَّ ابْنَ عَبَّاسٍ، أَخْبَرَهُ أَنَّهُ، بَاتَ عِنْدَ مَيْمُونَةَ، وَهْىَ خَالَتُهُ، فَاضْطَجَعْتُ فِي عَرْضِ وِسَادَةٍ، وَاضْطَجَعَ رَسُولُ اللَّهِ ﷺ وَأَهْلُهُ فِي طُولِهَا، فَنَامَ حَتَّى انْتَصَفَ اللَّيْلُ أَوْ قَرِيبًا مِنْهُ، فَاسْتَيْقَظَ يَمْسَحُ النَّوْمَ عَنْ وَجْهِهِ، ثُمَّ قَرَأَ عَشْرَ آيَاتٍ مِنْ آلِ عِمْرَانَ، ثُمَّ قَامَ رَسُولُ اللَّهِ ﷺ إِلَى شَنٍّ مُعَلَّقَةٍ، فَتَوَضَّأَ فَأَحْسَنَ الْوُضُوءَ، ثُمَّ قَامَ يُصَلِّي فَصَنَعْتُ مِثْلَهُ فَقُمْتُ إِلَى جَنْبِهِ، فَوَضَعَ يَدَهُ الْيُمْنَى عَلَى رَأْسِي، وَأَخَذَ بِأُذُنِي يَفْتِلُهَا، ثُمَّ صَلَّى رَكْعَتَيْنِ، ثُمَّ رَكْعَتَيْنِ، ثُمَّ رَكْعَتَيْنِ، ثُمَّ رَكْعَتَيْنِ، ثُمَّ رَكْعَتَيْنِ، ثُمَّ رَكْعَتَيْنِ، ثُمَّ أَوْتَرَ، ثُمَّ اضْطَجَعَ حَتَّى جَاءَهُ الْمُؤَذِّنُ فَقَامَ فَصَلَّى رَكْعَتَيْنِ ثُمَّ، خَرَجَ فَصَلَّى الصُّبْحَ.

Narrated 'Abdullah bin 'Umar :

The Prophet ﷺ said, "Night prayer is offered as two Rakat followed by two Rakat and so on, and if you want to finish it, pray only one Raka which will be Witr for all the previous Rakat." Al-Qasim said, "Since we attained the age of puberty we have seen some people offering a three-Rakat prayer as Witr and all that is permissible. I hope there will be no harm in it."

حَدَّثَنَا يَحْيَى بْنُ سُلَيْمَانَ، قَالَ حَدَّثَنِي ابْنُ وَهْبٍ، قَالَ أَخْبَرَنِي عَمْرٌو، أَنَّ عَبْدَ الرَّحْمَنِ بْنَ الْقَاسِمِ، حَدَّثَهُ عَنْ أَبِيهِ، عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ، قَالَ قَالَ النَّبِيُّ ﷺ " صَلاَةُ اللَّيْلِ مَثْنَى مَثْنَى، فَإِذَا أَرَدْتَ أَنْ تَنْصَرِفَ فَارْكَعْ رَكْعَةً تُوتِرُ لَكَ مَا صَلَّيْتَ ". قَالَ الْقَاسِمُ وَرَأَيْنَا أُنَاسًا مُنْذُ أَدْرَكْنَا يُوتِرُونَ بِثَلاَثٍ، وَإِنَّ كُلاًّ لَوَاسِعٌ أَرْجُو أَنْ لاَ يَكُونَ بِشَىْءٍ مِنْهُ بَأْسٌ.