Ali ibn Abi Talib reported: The Prophet, peace and blessings be upon him, said, “Verily, in Paradise are chambers whose outside can be seen from the inside, and whose inside can be seen from the outside.” A bedouin stood up and he said, “Who are they for, O Messenger of Allah?” The Prophet said, “For those who speak kind words, feed the poor, regularly fast, and pray to Allah at night while people sleep.”

Source: Sunan al-Tirmidhī 1984

Ibn Abbas reported: The Messenger of Allah, peace and blessings be upon him, was the most generous of people and he was even more generous in Ramadan when Gabriel would meet him. He would meet him every night of Ramadan to study the Quran. Thus, the Prophet would be more generous than a nourishing wind.

Source: Ṣaḥīḥ al-Bukhārī 1902, Ṣaḥīḥ Muslim 2308