Hadith 1163
Abu Haraira (RA) reported Allah's Messenger (ﷺ) as saying: The most excellent fast after Ramadan is God's month al-Muharram, and the most excellent prayer after what is prescribed is prayer during the night.
Hadith 1163
Abu Hurairah (RA) reported that he (the Messenger of Allah) (ﷺ) was asked as to which prayer was most excellent after the prescribed prayer, and which fast was most excellent after the month of Ramadan. He said: Prayer offered in the middle of the night and the most excellent fast after (fasting) in the month of Ramadan is the fast in God's month al-Muharram.
Hadith 1163
A hadith like this has been reported from the Apostle of Allah (ﷺ) by 'Abdul Malik with the same chain of transmitters in connection with fast.