The Salaf (the Pious Predecessors) and standing up at night for prayer in the month of Ramadan

It has been reported on the authority of Al Sa’eb Ibn Yazid, who said, “In the era of Oman Ibn Al-Khattab, they used to stand up at night for prayer in Ramadan praying twenty Rakat, and they used to recite about two hundred verses of Qur’an in a go[ means the verses that are more than one hundred.]. 

In the era of Othman Ibn Affan, they had to support themselves with canes because of the length of time they used to stand in prayer.” [ Source: Al-Baihaqi in al-Sunnan Al-Kubra (2/699).] It has been reported on the authority of Abdullah Ibn Abi Bakr, who said, “I heard my father saying: ‘By the time we had finished our prayers in Ramadan, the servants would have to rush to prepare food in fear of the coming of Fajr.’” [ Muwattaʾ Al-Imam Malik-Abdul Baqi (1/116).] 

Nafi` reported that Ibn `Umar used to pray in his house during the month of Ramadan. When the people departed from the mosque, he would go off to the Prophet’s Mosque with a flask of water. He would not leave the mosque again until after Fajr Prayer. [ Source: Al-Baihaqi in al-Sunnan Al-Kubra (2/699).]