#8 Observe three things

Book of Fasting

(60) Chapter: To fast the 13th, 14th and 15th of the lunar months.

Hadith 1981

Narrated Abu Huraira:

My friend (the Prophet (صلى الله عليه وسلم) ) advised me to observe three things: (1) to fast three days a month; (2) to pray two rak`at of Duha prayer (forenoon prayer); and (3) to pray witr before sleeping.