I heard somewhere that witr is not Obligatory.
It is a part of Qayam ul Layl.
Is this true?
Witr Prayer is Wajib according to Hanafi school of thought. In a renowned Fiqh Hanafi Book Hidayah it is said like this:
الوتر واجب عند أبي حنيفة رحمه الله
Translation:
Witr is Obligatory, According to Abu Hanifa (R.A)
Reference: Hidaya, Book 1, Page 66, Published: Beirut.
According to Imam Shafa'i, Imam Malik and Imam Ahmad, Witr Prayer is Sunnat e Muakkadah (سنة مؤكدة) which is some what similar to Wajib.
In the Shafa'i School of Thought Book, Rauztu Talibeen, it is stated:
الْوَتْرُ سُنَّةٌ. وَيَحْصُلُ بِرَكْعَةٍ، وَبِثَلَاثٍ، وَبِخَمْسٍ، وَبِسَبْعٍ، وَبِتِسْعٍ، وَبِإِحْدَى عَشْرَةَ
Translation
Witr is Sunnah, and is offered in Single Rak'at or Three or Five, or Seven or Nine or Eleven Rak'ats.
Reference: Rauzatu Talibeen, Book 1, Page 328, Published: Beirut.
In a Maliki Fiqh Book, it goes like this:
وَهُوَ عِنْدَنَا سُنَّةٌ مُؤَكَّدَةٌ
Translation:
and this (Witr) is, according to us, Sunnah Muakkadah.
Then it says.
وَهُوَ الْفَرْدُ وَاحِدًا
Translation:
And it is Only one Rak'at.
Reference: Az Zakheerah Lil Qarafi, Book 2, Page 392, Published: Beirut.
And in a Hanbali Fiqh Book Al Kaafi states about Witr like this:
الوتر. وهو سنة مؤكدة، لمداومة النبي صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ في حضره وسفره
Translation:
Witr, and it is Sunnah Muakkadah, because of Prophet's (ﷺ) offering it regularly, while at home and in Journey. Reference: Al Kaafi, Book 1, Page 265, Published: Beirut.
There are five fard (obligatory) prayers in Sunni Islam:
You have to offer perfectly the five compulsory prayers in a day and night (24 hours), unless you want to pray Nawafil.
Sahih al-Bukhari 1891
In the Hanafi madhhab, witr (among other prayers) are considered sunnah muakkadah (SeekersHub), which is defined as:
It is that Sunnah which [Prophet Muhammad] and the [Companions of the Prophet] had done with continuity or had emphasized it and leaving this Sunnah without a valid reason will lead to committing a sin and this person will be deprived of [Prophet Muhammad's] intercession on the day of [resurrection].
efiqh.com
So witr is considered wajib (necessary; essential) by Hanafis. Consequently, Hanafis may consider the sunnah muakkadah prayers as virtually obligatory.
According to most scholars, witr is not compulsory, only in the Hanafi school is it close to being fard (but even there it is not exactly fard). That being said, I still think it is good idea to offer at least one rakah of witr after isha (just to be on the safe side). I like how Sharkh Yasir Birjas said there is something wrong with your Iman if you do not offer the night prayer (qiayam al lail aka tahajjud aka witr) on at least some nights (and this is assuming you pray the obligatory five).
There is no prayer is obligatory except 5 times salah
until you wish to do.. here is the proof. and moreover allah command us to follow prophet muhammed(sal) not based on our own desire. so, if you follow someone you will be questioned during Qiyama and your head will leave you on that time.
Al-Bukhaari (46) and Muslim (110) narrated that Talhah ibn ‘Ubayd-Allaah said: A man came to the Messenger of Allaah (peace and blessings of Allaah be upon him) and when he drew close to him he asked him about Islam. The Messenger of Allaah (peace and blessings of Allaah be upon him) said: “Five prayers each day and night.” He said: “Do I have to do anything else?” He said: “No, not unless you do it voluntarily.” And the Messenger of Allaah (peace and blessings of Allaah be upon him) said: “And fasting Ramadaan.” He said: “Do I have to do anything else?” He said: “No, not unless you do it voluntarily.” And the Messenger of Allaah (peace and blessings of Allaah be upon him) told him about zakaah. He said: “Do I have to do anything else?” He said: “No, not unless you do it voluntarily.” The man left, saying, “By Allaah, I will not do any more than this or any less.” The Messenger of Allaah (peace and blessings of Allaah be upon him) said: “He will succeed, if he is speaking the truth.”