Regarding al-Ma.moon, it has been narrated that he completed the recitation of the Qur.aan thirty three times during Ramadhaan.
Category: Companions of the Prophet ﷺ
Making the most of Ramadhaan
Qataadah would complete [reading] the Qur.aan every seven days. And when Ramadhaan arrived, he would complete [reading the Qur.aan] every three days.
Increase your focus on the Qur.aan in Ramadhaan
al-Aswad ibn Yazeed would complete [reading] the Qur.aan every two days during Ramadhaan, and he would sleep between maghrib and 'ishaa.
He memorised an aayah a day
Yahya ibn Waththaab read the entire Qur.aan to 'Ubayd ibn Nudhaylah - a companion of 'Alqamah, and with him he memorised an aayah every day.
I read the Qur.aan to 'Umar
I read the Qur.aan to 'Umar [ibn al-Khattaab] رضي الله عنه three times.
Concentration during salaah
I prayed the morning [prayer in congregation] behind al-Fudhayl ibn 'Iyaadh, and he recited [soorah] al-Haaqqah, and when he reached His [سبحانه و تعالى] saying
Alone, and in the study of hadeeth
'Abdullaah ibn al-Mubaarak used to stay in his house a lot, and so it was said to him 'Are you isolating yourself?' He said: 'How can I isolate myself when I am with the Prophet ﷺ and his Companions?!
Regularly visiting the graveyard
Abu 'Abdir-Rahmaan 'Abdullaah al-'Umaree رحمه الله would visit the graveyard a lot, and with him he would have a book to read. [About this], he would say
I do not know
It is befitting for the scholar to bequeath his companions the term 'I do not know', so it becomes a principle to which they seek refuge [from the danger of speaking without knowledge].
The generous companion
I have not seen a man who was more generous than Ismaa'eel ibn 'Ayyaash. When we would visit him at the farm, he would suffice only with [slaughtering] a sheep for us and [some] dried fried dates.