Hadith #2431 (Sunan Abi Dawud)
Book: Fasting (Kitab Al-Siyam)
Narrator(s): Harun bin Salman هارون بن سلمان, Muhammad bin 'Uthman bin Kramh محمد بن عثمان بن كرامة, Ubaidullah bin Musa bin Abi al-Mukhtar عبيد الله بن موسى بن أبي المختار باذام
Grade: Sahih

The month most liked by the Messenger of Allah (ﷺ) for fasting was Sha’ban. He then joined it with Ramadan.

Source: https://parallelquran.com/hadith/sunan-abi-dawud-2431/

------------------------------------------------------------

Hadith #748 (Jami' al-Tirmidhi)
Book: The Book on Fasting
Narrator(s): Harun bin Salman هارون بن سلمان, Ubaidullah bin Musa bin Abi al-Mukhtar عبيد الله بن موسى بن أبي المختار باذام

“I asked – or; the Prophet was asked – about fasting daily. So he said: ‘Your family has a right over you.’ Then he said: ‘Fast Ramadan and that which is after it, and every Wednesday and Thursday. If you do that, then you will have fasted daily, as well as broken (the fast).'”

Source: https://parallelquran.com/hadith/jami-al-tirmidhi-748/