A: All-Praise is due to Allah,
Many people ask the question if one can make Wudoo washing the limbs once or twice opposed to thrice. In accordance to the Quran and Sunnah all three ways are correct. Allah ﷻ said: O you who have believed, when you rise to [perform] prayer, wash your faces and your forearms to the elbows and wipe over your heads and wash your feet to the ankles.
Here in this verse Allah ﷻ has ordered us for each limb to be washed once over, then it was mentioned in the Sunnah of the Prophet ﷺ the detailed description. Narrated Humran:
(the slave of 'Uthman) I saw 'Uthman bin 'Affan asking for a tumbler of water (and when it was brought) he poured water over his hands and washed them thrice and then put his right hand in the water container and rinsed his mouth, washed his nose by putting water in it and then blowing it out. then he washed his face and forearms up to the elbows thrice, passed his wet hands over his head and washed his feet up to the ankles thrice. Then he said, "Allah's Messenger (ﷺ) said 'If anyone performs ablution like that of mine and offers a two-rak'at prayer during which he does not think of anything else (not related to the present prayer) then his past sins will be forgiven.' "
Sahih al-Bukhaari: (159).
This is the description of Wudoo as it was performed by the Prophet (ﷺ), and there are many other narrations like this in its description where the Prophet (ﷺ) would make Wudoo by washing his limbs thrice over. As for washing once or twice it has been mentioned in Sahih al-Bukhaari: (157) narrated by Ibn `Abbas The Prophet (ﷺ) performed ablution by washing the body parts only once. And in another nation : The Prophet (ﷺ) performed ablution by washing the body parts twice.
Sahih al-Bukhaari: (158).
These Ahadith prove that it is broad in scope and one may choose to wash their limbs whether it's once, twice or thrice over. As for washing it three time it is more complete and rewarding accordance to the Sunnah.
Imam at-Tirmithi (may Allah have mercy on him) said: It has been authorized by some of the Scholars that there is no concern to whether one washes their body parts three times, or twice, or once over. (At-Tirmithi: (94/1).
And Allah knows best...