Umm Habibah (may Allah be pleased with her) said: Allah’s Messenger (peace and blessings be upon him) said, “Whoever prays four before Thur and four after it, Allah makes him prohibited for the fire.”
Collected by Abu Dawud (1269), At-Tirmithi (427), An-Nisa’ (1818), Ibn Majah (1160) . Shaykh Al-Albani graded this hadeeth as being Sahih in his checking in At-Tirmithi.
Benefits for this topic:
There are three narrations for this hadeeth, “ He won’t touch the fire”, “Allah makes him prohibited for the fire”, and “Allah makes his flesh prohibited for the fire”.
Shaykh Abdullah ibn Salih Al-Fawzan (may Allah preserve him) said, “This hadeeth shows the virtue of these four rak’at before and after Thur. These eight Rak’at are a means to be saved from Hell, along with carrying obligations, and avoiding prohibitions. Doing this act is simple and easy for the Muslim, when he practices and trains the soul to do it.[ Minhatul ‘Alam fi Sharhi Bulughil Maram]
Imam Ash-Shawkani (may Allah have mercy on him) wrote : “ The people differ over the meaning of this hadeeth. Some people say it means “he won’t enter the fire at all”, and others say, “If he enters the fire it won’t consume him”. Then there are some people who say it means, “The fire won’t consume him totally, but only part of his body, if he enters it.” It’s better to carry this hadeeth on its apparent meaning: Allah will make his entire body prohibited from the fire. Allah’s Mercy is vast. [Nayl al-Awtaar]
There is another narration, which in the beginning states, “Whoever preserves four Rak’at for Thur…” It’s understood here that this protection is awarded to the person who regularly practices these eight Rak’at.” [ Shaykh Muhammad Adam Sharh Sunnan An-Nisa’I vol 18/199]
As-Sindee (may Allah have mercy on him) said, “It’s enough to have belief in this hadeeth as it’s been mentioned. Perhaps the person who regularly practices this act will be granted from Allah success and have all his sins forgiven.” [Sharhul Ibn Majah]
The description for this prayer:
At-Tirmithi, “Some people of knowledge said that prayer for the day and night is two by two; they believed that one should separate between every two Rak’ah. This is the view of Ash-Shafa’I and Ahmad.” [Jam’I At-Tirmithi #424]
Al-Hajjawi (may Allah have mercy on him) said, “If a person prays the voluntary prayers during the day time in four Rak’ah like Thur, then there is no problem with that.” Al-Alammah Bin Baz (may Allah have mercy on him) said,” This view is weak. What’s correct is two by two.” [Ta’leeqat Bin Baz ‘ala Zad’]
The Prophet (peace and blessings be upon him) said,” The prayers during the day and night are two by two.” [ collected by Abu Dawud 1172 Al-Bukhari and Al-Albani both graded this hadeeth as being Saheeh]
Based on the above hadeeth the prayers during the night and day are two by two. A person makes Tasleem after completing two rak’ah. Furthermore a principle is built off this is that every hadeeth that mentions the wording four without clearly stating the denial of a tasleem, then it’s a must to consider it being he (peace and blessings be upon him) prayed it two by two.”[ Al-Mumt’I vol 4/77]
Abdul Malik Al-Juwaynee ([478H] May Allah have mercy on him) said, “All voluntary prayers are two by two, except Witr, regardless day or night.” [Nihayatul Matlube 3/ 349]
Translated and compiled by Abu Aaliyah Abdullah ibn Dwight Battle Sr.
Taken from http://www.abuaaliyah.com/?p=361