How many rakahs to pray in Ramadan

Abdullah bin Qays said: Shutayr bin Shakal used to pray twenty rak'ahs of Tarawih and the witr in Ramadan.

Ibn Abi al-Hasna' said: Sayyiduna Ali (may Allah be pleased with him) ordered a man to lead them in twenty rak'ahs of Tarawih in Ramadan.

Yahya bin Sa'id said: Sayyiduna Umar (may Allah be pleased with him) ordered a man to lead them in twenty rak'ahs of Tarawih in Ramadan.

Nafi' bin Umar said: Ibn Abi Mulaykah used to lead us in twenty rak'ahs in Ramadan, and in one rak'ah he would recite "Hamd al-Mala'ikah" (Surah Fatir).

Abd al-Aziz bin Rufay' said: Sayyiduna Ubayy bin Ka'b (may Allah be pleased with him) used to lead the people in Madinah in Ramadan in twenty rak'ahs of Tarawih and three rak'ahs of witr.

Abu Ishaq said: Al-Harith used to lead the people in Ramadan in twenty rak'ahs of Tarawih and three rak'ahs of witr, and he would recite the qunut supplication before bowing.

Abu al-Bakhtari used to lead five tarwihahs and three rak'ahs of witr in Ramadan.

Al-Hasan bin Ubaydullah said: Abd al-Rahman bin al-Aswad used to lead us in Ramadan in forty rak'ahs of Tarawih and seven of witr.

Ata said: I saw people who used to pray twenty-three rak'ahs in Ramadan, including the witr.

Dawud bin Qays said: I saw the people of Madinah in the time of Umar bin Abd al-Aziz and Aban bin Uthman praying thirty-six rak'ahs of Tarawih and three of witr.

Sa'id bin Ubayd said: Ali bin Rabi'ah used to lead the people in Ramadan in five tarwihahs and three of witr.

Waqqa' says that Sa'id bin Jubayr used to lead us in prayer in Ramadan; for twenty nights he would lead us in six tarwihas. Then, in the last ten nights, he would go into i'tikaf (seclusion) and lead us in seven tarwihas.

Sayyiduna Ibn Abbas (may Allah be pleased with them both) says that the Prophet (peace and blessings be upon him) used to pray twenty rak'ahs of tarawih and witr in Ramadan.