Command to offer Taraweeh with 5 breaks
There is a Hadith in Imam Baihaqui’s Sunan Kubra, in Musannaf Ibn Abi Shaiba, in Kanzul Ummal, etc.
عَنْ أَبِى الْحَسْنَاءِ : أَنَّ عَلِىَّ بْنَ أَبِى طَالِبٍ رَضِىَ اللَّهُ عَنْهُ أَمَرَ رَجُلاً أَنْ يُصَلِّىَ بِالنَّاسِ خَمْسَ تَرْوِيحَاتٍ عِشْرِينَ رَكْعَةً.
Translation: It has been narrated on the authority of Hadhrat Abul Husna (May Allah be well pleased with him) that Hadhrat Ali (May Allah be well pleased with him) commanded a Hafidh to lead the people in 20 Raka’at of Taraweeh with 5 breaks.
(Sunan Kubra Lil Baihaqui, Hadith No: 4805; Musannaf Ibn Abi Shaiba, Vol 2, Pg No: 285, Bab 227, Hadith No: 2; Kanzul Ummal, Kitab Us Salaat, Hadith No: 23474; Umdatul Qari Sharh Sahih Bukhari, Kitab Ut Taraweeh; Tuhfatul Ahwazi, Bab Ma Ja'a Fi Qiyami Shahri Ramadhan)
One narrator in the aforementioned Hadith’s chain of narration is ‘Amr Bin Qais. Allama Ibn Turkmani (May Allah shower His mercy on him) writes in Jawahir Un Naqi:
Translation: I think ‘Amr Bin Qais is ‘Amr Bin Qais Malai. Imam Ahmed, Hadhrat Yahya, Hadhrat Abu Hatim, Hadhrat Abu Zara‘a and other Imams and Muhadditheen have declared him reliable.
It is imperative to act upon the Sunnah of the first four caliphs
It has been established by these highly authoritative and reliable canons of Hadith that the First Four Caliphs not only offered 20 Raka’at of Taraweeh themselves but also commanded others to do so. In Islamic law, the practice of the caliphs has its own legal status. The Holy Prophet (Sallallahu alaihi wa sallam) has commanded the Ummah to adopt their Sunnah.
َعَلَيْكُمْ بِسُنَّتِي وَسُنَّةِ الْخُلَفَاءِ الرَّاشِدِينَ الْمَهْدِيِّينَ عَضُّوا عَلَيْهَا بِالنَّوَاجِذِ-
Translation: Bind yourself to my Sunnah and to the Sunnah of my Caliphs and hold fast to it with your teeth.
(Sunan Ibn Majah, Vol 1, Pg No: 5, Hadith No: 42)
Muhaddith-e-Deccan Hadhrat Abul Hasanaat Hadhrat Syed Abdullah Shah Sahab Naqshbandi Qadri Hanafi (May Allah shower His mercy on him) writes:
ان مجموع عشرين ركعة في التراويح سنة مؤكدة لانه مما واظب عليه الخلفاء,وقد سبق ان سنة الخلفاء ايضًا لازم الاتباع وتاركها آثم-
Translation: A total of 20 Raka’at of Taraweeh is a Sunnah Maukkada (Compulsory Sunnah) because this one of those acts which have been regularly performed by the Caliphs and it has been mentioned that it is imperative to follow the Sunnah of the Caliphs also and the one who leaves them is a sinner. (Haashiya Zujajatul Masabeeh, Vol. 1, Pg. No. 366)
Other Sahabah and the Tabie'en (the successors and the students) also offered 20 Raka’at of Taraweeh. The Hadith about this follow