How is Allah to be invoked by His Name "Al-Witr," mentioned in the noble Hadith: "Indeed, Allah is Witr (One, Single, Odd) and loves al-witr (odd numbers)"?

"Al-Witr" is one of Allah's Beautiful Names, and its meaning is the One who has no partner. The letter 'Waw' in "Al-Witr" can be pronounced with a fatḥa or a kasra.

It is permissible to supplicate using this Name by bringing its meaning to mind, such as saying: "O Allah, I ask You by virtue of You being Allah, the One, the Unique, the Self-Sufficient, Al-Witr, to forgive my sin."